MDE app for his smart phone, too, right? That way he can check lines, make FP reservations via phone while in the park, etc, right? He keeps telling me…nah…we only need it on one phone but I don’t see why we wouldn’t put it on both.
There is no reason for him not to, but are you controlling everything? Do you have the ability to change his FPs? He has you!
If OP’s phone battery dies, his can be a backup.
Not necessary but it’s free and it’s good as a backup so what harm is there in getting it?