I am not sure what this is truly about: ID verification? SM ban? I believe these are two different topics. Once research shows that something has a negative health effects, it has to be limited or regulated. Take alcohol for instance. I believe I am not the only one who drank alcohol before the legal age. So, yes, kids find ways to get around prohibitions. However this is about not letting them drink regularly and become alcoholic.
Would you legalise alcohol at any age?