I'm simply arguing that on average, the best players at that age often translate into the best players at 18 years old.
Are there a ton of exceptions & late bloomers? No question. Is that current list going to even resemble the 2021 top list in 5 years? Not even close. Are these guys, on average, HUGE & early developers? Absolutely.
Would I take my chances that 8-10 out of the 15 listed will be legitimate Div 1 type players in 5 years? yes