Back before the modern age it probably wasn’t uncommon for children/teens to see actual people having sex in front of them. Also, sperm levels have been droppi

Back before the modern age it probably wasn’t uncommon for children/teens to see actual people having sex in front of them. Also, sperm levels have been dropping for far longer than internet porn has been a thing. It stands to reason they might share a cause. There isn’t a solution. You can’t block teens from viewing porn. The best thing you can do is educate them that (most) porn isn’t a reflection of what most sex is like, and to watch out for porn addiction.