I'm just curious here really as DS is only 3mo but since the early days it's been clear he will be a thumb sucker. On the one hand it's great, he's able to get his thumb in his mouth now quite easily and often soothes himself to sleep longer by doing it. On the other hand, and I'm aware this is mostly vanity, please don't shoot me...most people I know who sucked their thumbs long term did end up with sticking out teeth, some even after braces. If your DC sucked their thumb, when did they grow out of it? Did you have to stop them somehow, or did you give a dummy instead? I'm well aware he might not keep it up and I'm not worried about him doing it while he's little, as I said I'm just curious.