Smart ones will, I'm sure some of them already do! Maybe Japan or S. Korea as most user friendly crypto markets.

Blockchain or decentralized databases uses cryptography to be secured.

Cowards will end up without money if they try to trade crypto. You need to have balls to hold when everything is melting!

Altcoin future should be bright since there are thousands of coins already. Not all will succeed, not all will die, but if you make a good picks you will be happy I'm sure because it's still early in crypto market!