Keeping your body acidic form the moment when you´re born.
Not to mention how sick it is, to keep the cow lactating all the time with fake hormones. Besides these poor creatures are kept in horrible condition.
But hey, cow milk is good for you, and your kids,
just like the cereals made of refined grain and processed sugar that will keep your kids first sugar high, and then sugar low shortly after so they will want to eat again so somebody can make more money off you and your siblings.