Our expert says:
Lindi, I doubt that his teeth will go brown and there is no medical reason why he should stop drinking from his bottle immediately. The best would be to start by giving stuff he really likes in one of those non-return cups you get at the baby shops. If he doesn’t want to drink from the cup, he can always have water from a bottle. This way he will learn that getting to the nice stuff means he will have to drink from the cup. In other words there is no punishment if he drinks from a bottle (he still gets to quench his thirst), but there is reward if he drinks from a cup. You will just have to persist and eventually he will get the message. Good luck.
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