I think milk is one of the best drinks that kids can have growing up, so unless they cannot tolerate milk products for some reason, there is no excuse not to give it to them.
I also grew up drinking lots of milk, it was also the best milk one can have, raw and milked from cows that were grown on a family farm that were fed differently for our use (fresh grass in summer and hay in winter).
I can't count the number of trees and walls I fell from when I was a kid, as kids we used to compete who will jump from the highest wall, I played soccer and competed in all sorts of sports events in elementary and high school and my bones are as strong as ever, knock on wood, nothing broken yet.
My latest debacle happened a few years ago when I was helping my father with laying down a hard wood floor. We used on of those mechanical staplers (not the new pneumatic ones) where you really had to give it a good whack with a heavy hammer in order for the staples to go in. Well during one of those swings I did not hit the head square and the hammer ricochet and hit me with a full force in the shin. It hurt for a week or more and to this day I can still feel with my fingers a bump in the bone.
I think milk is really good for kids, especially these days where it seems evrything has nothing but sugar.