How old is too old for a bottle?

How old is too old for a bottle? If you are looking for a number answer like 1,2,3, years of age there is not one. You and the parents control how long he or she is on the bottle. The best thing as a babysitter is learn how to wean him off of the bottle. For example, if he has a favorite toy. Let him play with the favor toy, keep the bottle hidden. In many cases he will play himself to sleep and not think about the bottle.