No fees to financial institutions. You can buy and sell with someone across the world if you want to, with no need to transfer money into their currency because the crypto is the currency. You do to have to deal with a lot of stuff if you use crypto.
I have invested in a few crypto currency’s, and it’s all money I can afford to lose if I have to. I have doubled my investment in 7 months. If you’re not stupid and put all your eggs in 1 basket, it’s a solid investment with the benefit of the things I mentioned first.