I don't think that regulatory bodies or authorities will provide any security promises for the investors even if they go for regulating the exchanges, they might say that they will make sure that the investments stay safe from scams and other stuff but they will probably not be responsible if a person loses their investment for a certain cryptocurrency dropping significantly, they will surely take action if a cryptocurrency rug pulls and scams their investors.
The promise of security will only be a promise, in the end, it will all be your own responsibility because it has been made clear that investing in crypto has a high risk.
The government will only take taxes and enjoy the profits.
so only a few rules will change and the rest will remain the same.
Saw some new coins that appeared on my local exchange and it was hype at the beginning of the launch because the coin was built by a famous artist.
But what happened, in the end, was just a junk coin with no volume and no increase whatsoever, many investors lost.
The government can only look at it and will not take any action.
About no regulations for the investors, what do you mean by that? They would obviously not let that happen, now when there aren't strict regulations, they are still asking for KYC verification from all customers, and you expect them to allow everyone to trade without any regulation on a centralized exchange.
Now KYC is an option that must be done.
Local exchanges in my country have even followed the government rules and are required to do KYC so that the government can detect who is using crypto and will be taxed in the end.
Trading without any rules can be done with DEX, but it will never work on a centralized exchange.