Seriously, what is your obsession to talk with talking to younger people? Maybe I'm just not a paedo like you?
Whatsapp is a phone number based chat app, for communicating with people you already know and have given your fucking phone number. Not a fucking causual chat app, not a dating app or what ever stupid thing you seem to use it for. It's literally just a fancy sms replacement.
And you probably shouldn't call people retarded when you yourself seem to have the IQ of 100 metres of dirtroad.