@scripterx if you ask me it all really depends on the kid, I took my oldest daughters at 3 and I took my 2nd oldest daughters at 3 and a half so its basically just a matter of when its time and whenever you feel their ready. As for the doctors they all have different opinions but at the end of the day you'll know if you made the right choice or not sometimes you may have to try a few times or get them in to a routine to only use it when sleeping or something. nice post its a bit different than what im use to seeing.