How can I train my 23months son to drink from glass or cup other than feeding bottle?

A. hi...The transition to a cup requires more time than the bottle. Starting off with a sipper cup can be a stepping stone, allowing your baby to start sucking differently. Once that happens, you can make sure that at least one feed of the day is being rendered via a cup. As your little one grows up, he will get used to drinking from the cup right away.