Players under 13 can still player non-FE games, also known as experimental games, but games that are in experimental mode will not appear on game sorting meaning those players will need to have a direct link to the game page or follow a friend to play a game in experimental mode.
Also, what exactly do you mean by “bypasses”. I don’t think you quite understand what the FilteringEnabled property does. The FitleringEnabled property prevents any changes the client makes from replicating on to the server.
However, when you say “bypasses”, you may be thinking of one of the few exceptions to this property, but they are not per say bypasses. Those exceptions to the FilteringEnabled property would be:
- Some properties on the local Humanoid
- Sound playback, when SoundService.RespectFilteringEnabled is set to false
- ClickDetector input events
- AnimationTrack playback
- Physics simulated on BaseParts which the client has network ownership of
I’d recommend you read up on these articles to learn more in-depth about the FilteringEnabled property and how it works: