Anything in a bottle must be provided by the parent and this is one of the reasons why. The other reason is I got tired of being asked to fill a bottle for the child to drink on the car ride home even though it was only a 10-15 minute ride at most. I provide 4-6 oz of milk for one snack and lunch, and 4 oz of juice at other snack. Anything else is water. And anything I provide is in a sippy cup.