I have a slight intolerance to lactose. But I do love my cheese! - and I do have an occasional need for milk (cereal, cooking, etc). I take a Lactaid (OTC med) before having any dairy & that prevents the upset tummy issues for me.
Altho I have no problem with fat, I need/want the protein of dairy. I prefer skim milk & 2% (sliced) cheese. I can't stand the taste of full-fat milk (it just tastes too ... I don't know... curdled? ick!) and I I like a cheese slice on my turkey burgers & so forth. I enjoy fat-free cottage cheese. Plus, a half cup of fat-free cottage cheese is only about 80 calories, and since I count calories, that's a check in the
"yippee!" box for me.

I love cottage cheese with a packet of Equal & some cinnamon sprinkled over it... it's like a dessert! YUM!!
Other than the lactose intolerance thing, I really don't see any health problems with consuming dairy. Altho the human body doesn't have to have it, it can be good for you, & it's tasty, & like most everything else:
"all things in moderation." 