Charlie still drinks from a bottle at 21 months old. I've tried (although not that hard) to get him to drink milk from a sippy, but he refuses. I think the bottle is a source of comfort for him.
I also haven't been pushing it because he's such a picky eater, and without milk he wouldn't get enough calories each day.
How did you wean your baby off the bottle, and which sippy did the trick?