S.C.
My pediatrian said it is attached to their body so you can't take it away anyway. It is a comfort to them. Besides, they will suck it when you're not looking or at bedtime. It is one tiny thing they DO have control over. It's not really hurting anything and peer pressure will cure it if they don't stop on their own. However, the dentist is seeing signs of teeth starting to move (my daughter is 4 1/2). She very frankly told my daughter it is making her pretty teeth crooked and she would like her to think about not sucking it anymore. I don't mention it to her but occasionally when she brushes her teeth I'll say "Lemme see your teeth", then say, hmmm, "they do look a little crooked". I don't mention it otherwise. I think the peer pressure idea will work best on my daughter.