It is impossible to make the regulations of all cryptocurrencies today, which number more than 20k, a month New Listed Coins can reach 1000, maybe an easy regulation is like what Dex does, namely with liquidity, with large liquidity it will make the scam project will decrease.
A government can regulate the amounts coming in and out of an exchange and thereby tracking the KYC of the accounts running those trades. From that a lot of information regarding owned assets, taxation and possible tax evasion could be checked. But for that centralized exchanges need to run under government reins which has not started yet. DEX and how they operate is also vulnerable to government crackdown. But these things should only instill fear in the minds of criminals, average Joes like the major number of users in this forum need not worry.
This is what I feel how regulation will start. In my opinion any change is good for the future. While some people might argue otherwise, the number of scam coins on the market is way more than the number of legitimate projects.
Therefore in future some middle-ground needs to be reached and a type of regulation may happen. How? we have to wait and see.