if he has cows milk in cereal and in milkshake form that should be enough. He still needs powered milk for the extra vitamins and iron which cows milk lacks. My daughters not to keen on beakers, have you tried a sports cap bottle, she loves them. To be honest I don't think there's anything wrong with giving them bottles for there milk and beaker for water/juice. There's so much gripe about getting them off bottles, its not like there going to drink out of them forever. Have you tried drinking through a beaker, its not good, in fact its awful, no wonder most kids don't like them.