I was casually talking with my friend (we talk about everything) the other day, and he just jokingly mention that he gave his "talk" to his son about sex who is like 12 (pretty late I think in this day and age). He gave his son a list of harmless sites that teach about masturbation, which I respect, and think a parent should consider letting their kids know about. However, he also mentioned to him jelqing and gave a site for it. I think it's sort of weird to try to give size advice a kid. I know that all of this together is none of my business, but is it appropriate to give your kid advice about jelqing especially since there is risk of injury? Should I do talk to him about reconsidering his choice or is that their business altogether? I don't want to have to have a conversation in a year with him dealing to his son having nerve damage (or whatever damage you can get from jelqing) and him having to go to a doctor.