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.