Im going to say no for two reasons. Firstly its bad for ones teeth. If someone needs to feel the need to suck their thumb they are likely going to do it to the extent that its bad for the teeth. Secondly the social negatives will be massive. Bullies will wing off almost immediately and there is a good chance of having some sort of physical altercation. Unless your built like a line backer. Maybe then you can be so physically impossingly powerful to keep bullies silent. Beyond that though its likely to negatively impact various social situations if a schoolmate or work mate sees you. Heck it could follow you into some adult life interview. Its just to outside the norm.