DS only liked milk from booby (stopped BF'ing at 19 months) or a bottle. Water came from cups or sippy cups, milky tea came from mugs. Don't mess with that system he felt. So at 2.5 years old I switched his bedtime bottle to an after 5pm supper bottle, his dessert lol. Then he would have a bedtime snack-toast or boiled egg or banana and then brush his teeth. At about 3.5 years he started having a glass of milk with his 5pm supper by his request so that was the end of "botbots." Then at 4.5 and until now he really only drinks water (his favourite drink) and asks for milky tea or a glass of milk when he feels in the mood and not necessarily with his supper, sometimes as a snack. (4x a week-ish)