Is there any benefit?

[adifairus]

i never take that young player they give from youth that need token,

i just take the free one and sell. hah hah

[Altiplano]

Always take the free one, BUT don't sell. Train until 39%, hold and sell through negotiations the following season. Helps with teamwork bonuses throughout the season too.

[Toxcatl]

i never take that young player they give from youth that need token,

This one is always a FT. It is probably a good idea to get him.