As far as age limits impacting clubs, no way. They are in it to win it. We'd all love to see the birthdates of kids playing clubs at tourneys. Only when teams face the WSYL birthdate issue will some teams adjust their rosters to keep major holdbacks off the roster, if the 9/1 rumors are true.
NLF was supposed to have asked for birthdate checks for their tourneys but what that entailed who knows. Their clubs are mainly holdbacks.