@TuuktuukTuukka R Because personal information about children must be considered extremely sensitive and protected at the highest standard.
And the only way to do this is with solid and well-implemented end-to-end encryption.
@Em0nM4stodonEm 
@TuuktuukTuukka R And platform owner knowing that a user is a child endangers them by risking exposing that information to attackers and to insider threats. The only solution is to treat personal information on all users as if they might be children, and not possess or have capability to access anything beyond what's absolutely needed.
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