Sure, but as far as the people that are going to be professional, and good enough to play for a national team, you'd already be playing in the top levels of soc

Sure, but as far as the people that are going to be professional, and good enough to play for a national team, you'd already be playing in the top levels of soccer by 19. Lamine Yamal was playing for the A team in Barcelona when he was barely 16, and was a starter in Spain's eurocup win at 17. More "normal" players, likePedri and Messi, played their first minutes for Barcelona at 17. So if you even smell a college varsity team, you are already in the slow track. It's really rare to find a star that wasn't at least in a farm team at 15. I have a friend that was already there at 10, and his ceiling was just starter in a low tier team in La Liga.