There isn’t any authoritative proof and no DNA testing that I am aware of, however, I truly believe there is something within the makeup of little boys that causes them to throw rocks at the windows of old abandoned houses. They can’t help themselves. In fact, it would be odd if they didn’t.
Sometimes, not often, that instinct no longer lies dormant and a full-grown adult will be overcome with the urge to hurl a stone at the window of an abandoned house. This behavior is seldom viewed as acceptable, simply due to their age. In fact, it is more likely to be viewed as vandalism than anything else.
This time factor
alters our opinion of the behavior. It
is at this juncture where the phrase, Old enough to know better, first
came into being. A phrase not very
popular with the younger crowd.

