So we just went to the pediatrician and she again told us it's important to start introducing our LO (who is 11 months tomorrow) to the sippy cup. For the last couple weeks I have tried about 3 different sippy cups with no luck. I ordered the Munchkin Latch transition cup since a friend had great luck with it and he hates it. He just keeps pushing it away and crying. I want to get him off his Dr. Brown's bottles around the time he is one. Did anyone else have this issue? What did you do?

Thanks!!