None of this will work unless there is a system to verify who is playing in each actual game. Short of checking something like photo ID cards, like PAL does/used to do before football games, you will always have coaches trying to take advantage of guest players, older players, etc.
That is the point on USA Lacrosse. That system already exists. If a tournament went through USA Lacrosse, and required all the players and coaches to be US Lacrosse members (They'd have to submit their numbers as part of the registration) That would confirm ages/eligibility.
The weakness lies in there is no mandate to use them.
