My cats literally don't know what milk tastes like. I haven't bought pet's milk for them for probably over a year. One reason is if it isn't used by the use by date it gets wasted. My 2 youngest cats are under 14 months and they've never drunk milk unless I gave it to them when they were kittens - I can't remember. I'm thinking about buying it again. I give them biscuits occasionally however I refuse to take them to a restaurant.