I want to write an article about this and I've been asking around.
So far, I've found:
* Fraud and scammers
* Government taking over
* Scalability and governance
How about you guys?
The possibility of cryptos getting destroyed by the governments out of nowhere is one of the main concerns in people's minds, even though the possibility is not likely at all to happen, but it does make people worry sometimes. Scamming can be avoided in most of the cases if the person is smart, but avoiding the control of governments can be very hard for the normal folks.