I said a good teenager might run 10.7 and you have found a list of teenagers (I don't know how old they are) that can do just that. Very few people sprint after they leave college but if they spent time becoming stronger and more physically mature then 10.7 would be quite achievable - even a good highschool runner can run that time.

My original point being that people can run this fast and that if they do they would only be a few percent slower than the pinnacle of the sport. Even from the list you shared there most of the runners in those state finals ran 10.7 or better. Imagine an olympic final that had extra lanes for the fastest teenagers from Californian highschools. We would see a horde of 60kg teenagers that could finish the race less than a second (<10.7s) behind the fastest man in the world (9.80s in the previous olympics) over a 100m race.