I don't really agree. Many men experience weaker erections or fewer spontaneous erections even in late 20s or early 30s, and that is definitely culturally a tim

I don't really agree. Many men experience weaker erections or fewer spontaneous erections even in late 20s or early 30s, and that is definitely culturally a time where you are expected to be at your 'peak masculinity'. In a world absent stigma, perhaps these drugs would simply be seen as performance enhancing to the extent 21 year olds with perfectly functional circulatory systems would take them so they could go for a round 2 and round 3 more quickly.