I stopped taking milk in tea and coffee as a result of trying to reduce my cholesterol count. I like milk and cheese and all the things pen listed, so tea and coffee without milk keeps the intake down without too much pain.
Anyone who was a child in the late '40's will have had it drummed into them the milk was a Good Thing (free at school, off the ration) and as far as I'm concerned it still is, within limits. Nothing could beat slurping the cream off the top of the bottle, and still can't. Fortunately, at the moment I don't have a cat, which would obviously have first shout.