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 most striking feature of Bitcoin is decentralization. No organization controls the Bitcoin network. This makes it easy for everyone because no big bank can control their money. This means that your property will not need to be kept by other people, so you are free to keep your property. Your account can not be frozen like other bank deposit assets. I think this is the most necessary thing