We don't really need BTC. I hate when I see people trying to convince others to sell everything they have to buy BTC, it's disgusting. Bitcoin is a lottery, you shouldn't use the money you need to pay your bills and buy food to bet in the lottery right? Bitcoin is kinda the same thing. People should invest money that in case they lost it wouldn't be a big deal you know? It's a long-term investment, however, it's a bet. You can win a lot or you can lose a lot too. Are you brave enough to deal with this risk?
The only reason for us to invest on bitcoins is the big profit that we can actually earn by just holding it for a very long time. I believe that cryptocurrency is the answer to survive poverty and even governments can use bitcoins to increase the growth of the economy of different countries.