After all, we're well used to our hands touching our cocks since we were taught how to aim to piss (even when we have no reason to aim).
And if our parents have not been open to honest, frank talks, and instead teaches this reaction:
where does the emerging man turn to understand he has no reason to be ashamed?
When we dare discuss it with buddies - who know as little as we do - misinformation runs rampant.
Other than being aware of his own frustration over not having a nice leisurely fuck, does he even know he's cumming too soon, that there's a name for it, and there are things he can do to control it? Things he could've been told about by dad, and practiced while jerking off?