If they gonna ban everything related to gambling (which is not going to happen because every state from this planet have their cut in this industry) they can't stop cryptocurrency and betting with crypto.
They could ban it but I'm not sure it would stop gambling in one country as gamblers would be looking for ways to continue gambling. They can access online gambling sites that are outside of their country and by using a VPN, they are sure to find one that works for them. On top of that, crypto casinos also allow the use of VPNs so it doesn't really stop gamblers from gambling.
But related promotions about gambling will still go on and they can find a way to get more users playing at their place. So I guess it will be a bit difficult for the government if they want to ban gambling.