"Do you also think that the learning curve is really hard in Olympic lifting.It takes tons of skill to perform the lifts and they are very difficult to learn.Plus ,so many Americans are benching from day one that they loose the flexibility in their shoulders to then learn Olympic lifting becomes impossible.I also agree that our strongest,best athletes go into football and then start lifting for football.In other countries,if your strong,you lift.Here,if your strong or large,you play football."
I think ideally for a lifter, you should start before 12. I started at 13. The top countries start their people at 5 or 6. That does not mean that at 5 or 6 they are doing actual lifts. Rather, they spend 2-3 years doing a combination of jumping, stretching, gymnastics, and things like throwing medicine balls, and doing things like burpies (kind of a squat, pressup, jump exercise), and doing lifts with a wooden stick, with a total focus on speed, flexibility technique. So, at age 9 you then have kids with awesome flexibility, great technique, good exposiveness. And then you gradually start introducing weight on the bar (still very light) perhaps total 10kg for the lifts, and a little more for squats and pulls. Bones are still growing and developing at this age. The, during the ages of 10-13 you very gradually start increasing the weight, still with the major focus on speed and technique. Then, at ages 13-18 the weight really starts increasing, in a controlled way, making very sure to avoid injury. And then at 18 onwards, depending on maturity and growth the weight starts increasing quite rapidly (and at the right time, performace enhancing substances are added). And then 18-28 is when the really big gains start coming, and the real muscle development takes place.
Now, compare that to your average American kid. Perhaps at age 14-15, he walks into a gym, and starts doing a few bicep curls, and some benches. He is usally a bit overweight, has poor flexibility, and its simply too late to develop the kind of base that the kids have who started at 5.
You get the picture, right? This is really how is starts in the Eastern European countries, and in China. The US does this with gymnastics, and swimming, and they get good results, but they are way way way behind in weightlifting.