Bitcoin the only decentralised cryptocurrency that is dependable and guaranteed return on investment which is undeniably the truth about it.
Bitcoin as a source of income or as an investment plan, which is better?
(It has many advantages and disadvantages, but advantages superceeds the disadvantages). Putting the disadvantages into consideration and as a person that want to lower their risk of loss, will bitcoin be suitable as a source of income (not fully, like part-time job), or investing fully in them and wait for a large profit since many users here in the forum foresee it that, at halving the price always go up above the current All time high.
Just as others has said, don't take Bitcoin as a source of income, it's too volatile for you to think you can make profits from bitcoin whenever you want. It's better you use Bitcoin as an investment or as a currency because that's what it was intentionally made as when Satoshi ontoroduced it to the world. Satoshi called it a peer 2 peer currency and that's what bitcoin is. Other benefits you're receiving shoudn't be depended upon because it can seize to exist at any moment. If Bitcoin keep growing as it has done in the past, we might get to a point that the price of Bitcoin might stabilized and then it won't been seen as an investment opportunity anymore but it'll always been seen as a currency because that's what it is.
There aren't many jobs that you can get paid with Bitcoin. If you find one, that's great. Don't worry if you don't find one though, you can always convert your fiat money income to Bitcoin from exchanges.
There is no guaranteed return in any type of investment. Bitcoin price went up after every halving but that doesn't mean it will go up in the future. That's just a prediction coming from past experiences, nobody guarantee it.
The jobs in the crypto industry are also as scarce as it's in real life because the industry is filled with those seeking for the jobs and if you're smart or have an edge over others, you mightn't get any offer because everyone is down pricing their service just to get the jobs and experience to qualify them for higher jobs. You have to be unique or you're not getting employed which is why bitcoin shoudn't be seen as a job. Having a job paying in Bitcoin doesn't have anything to do with Bitcoin directly because it isn't Bitcoin that's paying you but they're using Bitcoin to pay and they can always change that in future to stablecoin, fiats or other altcoins.