My little research has shown that the following are some of the business opportunities that abound in blockchain technology;

1. Banking

Nevermind that blockchain — the backbone of Bitcoin — was created to circumvent traditional financial institutions. Or that banks originally opposed cryptocurrency, fearing obsolescence if unregulated currency ever went mainstream. Blockchain, it seems, now has a new friend, and it is none other than the global banking system.
2. Smart Contracts

One of the hottest features of blockchain is its ability to facilitate smart contracts. While the fintech, banking, and legal services industries are already dabbling with automated transactions that execute based on preset conditions, a whole host of other business are clueless that they, too, could benefit from smart contracts.

3. Connected Car

The automotive industry is proceeding steadily toward its goal to have more than 37 million connected vehicles on the world’s highways and byways within the next five years. The road to mainstream adoption of IoT vehicles will paved, in large part, by blockchain technology.

4. Healthcare

No industry requires more data to be processed daily than the healthcare sector. From patient admittance to recording surgical results, every patient represents a torrent of data that must be kept accurate, accessible, as secure. No technology can satisfy these requirements like blockchain.

5. Internet of Things (IoT)

The growth of IoT technology cannot be over exaggerated. With everything from cars to connected homes hooking up, the market for technologies to support IoT is enormous. With $6 trillion expected to be invested in IoT during the next five years, an increasing number of tech companies are looking for ways to carve out a share of the market. One of the best opportunities awaits innovators who can make IoT data move more quickly and remain secure using distributed ledger technology.

It is likely that future (updates to) cryptocurrencies will make transactions even more difficult to link to an identity than is already the case right now. This will indeed be a daunting challenge for the IRS in the near future.

But making cryptocurrencies illegal would be very unwise: blockchain technology will prove indispensable for economic growth.

Maybe it will become necessary to completely rethink the current taxation system and come up with something radically different.

Bitcoin was created back in 2009 as an alternative to money, whereas Ethereum is more of a platform that facilitates companies building new applications and programs.

Ethereum’s website insists that its own currency “would never have been possible without bitcoin” and that the two cryptos are “complementary within the digital ecosystem”.

The website explains: “Ether is to be treated as "crypto-fuel", a token whose purpose is to pay for computation, and is not intended to be used as or considered a currency, asset, share or anything else.”

The recent explosion in the value of cryptocurrencies has prompted excitement among financial experts.

Sometimes ago I was also tempted to quit my job because of crypto but then I thought over and I realized that I should not leave certainty and go for uncertainty. 
If you're not happy with your job and you already got huge earnings from bitcoin use that earnings to create something that could give you stable income. We are not sure bitcoin price will continue to rise in the future.

For me, my local banks do not accept Bitcoin for now, so what I do is get my bitcoin transferred into my perfect money account using changer.com, when I have my bitcoin in my perfect money account I can now use any of the available local exchange sites to get the money into my bank account. I think with time, as Bitcoin gains popularity and acceptance, banks will begin to accept it.

Someone may begin to feel that the banning of cryptos in some countries or regions will affect the overall demand for cryptos,  it may try to do so, but No, is not the END. No one can stop bitcoin or any other cryptocurrency right now!!

They can set bans at country levels, they can raise testimonials, like someone from some bank did last week!!. They can arrest people and close brokers, they can do whataever they want, but, nothing of this will end cryptocurrencies!!.

They can try, but will fail every time.

Now is a great example of this, just look at the cryptomarket. Yesterday all cryptomarket was crashing 20%, now, is 10% green again, and raising fast!.

The only way to stop bitcoin right now is shutting down all the INTERNET!!!, and this i´m pretty sure will not happen!!

Without trying to be too snarky, the only thing anyone can say with certainty is that Bitcoin’s value will fluctuate. How much? Nobody knows. I am, as we speak, trying to find a currency arbitrage expert to help me understand the implications of BTC volatility strictly in terms of trading it like a security. In other words there are people who do this for a living on Wall Street and other places, with trading models. Those people will figure something out and the rest of us will guess.

One thing about buying any sort of crypto is right timing.  I missed some hundreds of dollars last year and earlier this year because of the issue of wrong timing. You being able to determine the right time to buy or sell crypto is a very important factor in making waves in the cryptocurrency world.

It is nearly impossible to hack the Bitcoin network and steal Bitcoins. You will need to find the private key for a particular public address. The possibilities are limitless. Still a group is working on a project to crowd source computation power to find private keys to the Bitcoin network:

I agree with you, with time the markets should recover.

For me I think I love trading Bitcoin rather than mining it o, the resources that you will consume in the process of mining it are more compared to trading it.

Bitcoin may or may not loose it's popularity. It all depends on its acceptability by all, while some people can sell their valuables in order to invest in Bitcoin, some people are still scared venturing into Bitcoin trading or mining. It's popularity also depends on the information people have about it. The more informed people are about it, the more I think its popularity.

Selling your house may not be the best option to invest in Bitcoin, because of its irregular prices. But if you can afford to lose such house, you can go ahead and do it. In trying to invest on crypto, you have to meticulous and be discrete, if not you may end up loosing money.

The government is just trying to protect its people from being scammed. In some countries despite the warnings from the government to citizens not to invest in Ponzi they went ahead to invest which many people later regretted their action, so the government is afraid that its people may be scammed as a result they are protecting the interest of her people.

I think it is possible for Bitcoin to hit 30k and even above that, it all depends on demand rate. If the demand rate is high, that may tend to affect the overall value of Bitcoin.

Is there anyway to mine BTW now?

In my own view, it is a good idea to educate students on cryptocurrency in high school knowing fully well that, it is the latest technology in town, but then, I will like to suggest that they are only introduced to it because this may not be the perfect time to bring the full knowledge to them.

According to a popular saying "Money answers all calls", the quest for money nowadays is quite alarming, everybody wants to get money, so getting a means of getting rich quickly one would tend to pay more attention to such means.

Please any info on when this will be in exchanges?

I think the reason why Bitcoin is the most popular is probably because it is the first to ever come out!