This is a weird one I don't know how to explain it.
When I first started there was a tracker of youth minutes on the team squad screen in the rules bar (teams must play u21 Canadian players for 1000 minutes across the season which you've got in the rules) but since I've gone into the fall season I can't find it. Don't want my team to be needlessly fined but I can see no way bar going through manually to track this.