i am trying to get DD2 to have water in a cup but all she does is chew on it and isnt interested really. i have the mag mag cup with the 3 different types of teats. when its the bottle teat she sucks for a bit then stops (maybe doesnt like the taste of water) when i use the spout all she does is chew on it and when i use the straw she just plays around with it as well. it is very frustrating. any tips to get her to start using a cup or is she just too young?