This makes me think of the US states that try and "ban abortions"
All they do is ban safe abortions. The back streets are going to remain full of people who can "help". (Young) women will die but frankly, they DGAFF.
If people cannot get good advice about crypto-currencies, they will have a go by themselves. They may need to work their way through government firewalls and VPNs but some will. They will be in greater danger of having it stolen. Those who come out the other end, will loose even more faith in their banking system and how it owns their government.