Squad sizes seems very small in most youth teams

all these leagues are set to playable btw 

Thanks for providing a save game. Given that some things can change with patches, it would be worth keeping an eye on this and seeing if it does change at all now there's a new patch. If it gets worse, or better, these would both be good things to know. Thanks for providing your save though and our QA team will take a further look in due course.