● Children like that grow older without intervention, and that's why youth crime is on the rise. ● That kind of child simply becomes a big kid, and that's why youth crime is on the rise.
「ああいう」はlike that「あのような」で表現します。intervention「干渉」。be on the rise「上がる傾向にある」。
Is that the sort of pet you want? 「ああいうペットが欲しいのかい?」。