@EUCommission There are two things.

1. It shouldn't be META's responsibility in this case. You do not jail a store because they failed to keep the shop-lifters away.

2. On the other hand, if they are spying on any user (even not their users) then they are sure to have the age estimates of their users and thus be able to filter them.

From all the reasons, however, I found the inability to filter users that are underaged to be the least concerning.