DS has been sucking his thumb a lot more lately. Before, he would chew on his hand, and that increased lately because he's teething. He would occasionally be coordinated enough to suck his thumb, but only very rarely. Now that he's getting more coordinated, though, he's able to suck his thumb a lot more easily. The good thing, though, is that, because he's able to do get his thumb, he's learning to self-soothe, but I don't know how bad of a habit it might be. I mean, if he had a binky, I could just throw it away, but I can't exactly throw away his thumb. He's at it right now and falling asleep, so if it brings him comfort, I don't want to take that away from him, especially because he's so little. Is there anything I can do about it now or down the road?