My mother made me drink milk for every meal. I had to finish the glass, no matter what. And everything I dished onto my own plate, but not everything she'd put there. I had a lot of stomach trouble as a kid. I hated milk. When I started living on my own, it took a while to stop that automatic habit, thinking it was nutritious or healthy or something. Gradually just stopped drinking the stuff, and my stomach began to settle down.
I never drink it now.