Bitcoin now costs a lot and so many can not afford it
You can always purchase a fraction of 1 bitcoin depending on your budget. In fact, its price already decreased from $20,000 to $3,700, which people seemed to believe that its dying. If you have the budget, you may want to invest or do day-trading as its volatile nature can yield you profit which is relatively higher than most conventional investment methods.
It would be foolhardy not to acknowledge the potentials of Bitcoin and it's potential to disrupt a lot of economies in the world. But ascribing it to be the 3rd world strongest currency is a little too early in my honest opinion and it would need a lot of adoption around the world to attain that status and it definitely would take some time.
I fully agree. I mean, it may be regarded as a digital currency but most countries view it as money, but not legal currency. In addition, cryptocurrencies cannot be entirely adopted as a currency due to economic discrepancies among developed, developing, and underdeveloped countries. It would only lead to chaos and manipulation wherein underdeveloped countries would be poorer and the developed richer.