Hi, my friend. I agree with you:

But STOs are followed by the legal frameworks and these are more secure.

This is extremely important, because scammers are more active than ever and, unfortunately, it has happened that in an ICO you obtain a token with certain expectations of seeing its value grow and the opposite occurs: its value falls below the acquisition price. It is very good that we all share in order to gain potential knowledge and face scams.
Regards!