those already exist, they're called "children"

( Lightguy hail satan, Wed 24 Jun 2009, 22:06, archived)

children aren't humans
not even close
( Grrrmachine the indifference engine, Wed 24 Jun 2009, 22:09, archived)

Or 'Supermatt'.

( Neptune A dole queue dosser and foul mouthed chav., Wed 24 Jun 2009, 23:01, archived)