There. I said it.
He did JUST turn 2 and all...I tried one day to get him to drink milk out of a sippy cup and he LOST HIS MIND (He had no choice because the bottles were all dirty) He's starting to use it less and less often. But when he's teething sometimes it's all that I can get into him during the day.
Is it THAT horrible? He'll drink water and juice from cups. We never even transitioned to sippy cups because he wanted to just drink from a cup...except milk.