In my opinion, the problem with PEDS isn't adults taking them if they would just admit to taking them.

The problem is with adolescents taking them. Adolescent boys see a really nice immediate payoff for taking PEDS (better musculature and better sports performance->more popular) while the downsides are in the future. It's really hard to fight that.

Even when I was in high school several decades ago, we had a handful of people on PEDS. And we were a tiny school with no significant sports programs. I can't imagine what it's like now with social media pushing everything.