I think that at the moment the problem with crypto is:

• There are too many different coins and tokens out there
• It's not really used as a means of commerce

There are still a lot of things that need to change before people start to trust crypto more than fiat.

Just a little side note... When I was a kid, about 40 years ago, my parents told me that to buy 1 USD we needed around 12 Swiss Francs. Today it's close to 1:1...