Why do folks have sêx early today?

[Heatman]

This is something that I can't get out of my find for a long time now. It's why I want to ask questions about it. At our time, having sêx isn't something we did early but now, folks at the age of 15 years have started having intercourse. 

What happened? What really changed? 

[Krissycakes09]

The world is a messed up world and I think girls/guys are having sex early is cause they want love and feel that this is the only way to get it.

[spenb]

I feel the lack of proper parental authority is what's happening.