Wintertime,
You are so right. This morning, I was just thinking about this very topic: Our society has extended childhood into adulthood by virtue of extended school. As a result, everything in life has been pushed to a later age. Generally, we finish our education when we graduate college at age 22 or 23, and then we are just starting in our careers. So, we aren't financially stable until later, and we're marrying and starting families later. All because people go through school moving through each grade according only to specifically-designated age levels, thus they're held back.
22 or 23? That's a little on the late side for graduating from college. I was 20, just a little on the early side.