I'm sure you "think" a lot of things. Unless you hang out exclusively with white people, there are a lot of people that think drinking a glass of milk is weird. They just don't tell you, because they're polite.

If you're in the United States, perhaps you've heard of the show It's Always Sunny in Philadelphia. The show characterizes the McPoyles as particularly weird people. One of the ways they create that characterization? Them guzzling milk.

Dairy "products" are a different concern. Most people produce some level of lactase, but a glass of cow's milk is a separate thing.

Aged cheese, for instance, is a different thing. Why would aging cheese add distinct flavors? Because bacteria is digesting the sugars (lact-OSE) and converting it into other things.

I love cabot cheddar myself for cheap stuff. If you want to know the lactose content of cheese or other dairy products, if there are no added sugars, just check the sugar content. That's lactose. If it says zero, it's near zero.

I've never met an adult in my life, of any color, that orders a glass of milk and drinks it. I'm sure it happens, but I guess just not in the circles I run in.

You'd have to actually be around people regularly to see that it's unusual. If you're just in your own house or with the same people every time you go out, then no one is going to mention it.

Honestly, it's unusual. I make a high salary and part of my job requires regularly socializing with new people--clients, investors, new friends, etc.

I've never seen a grown adult order a glass of milk and drink it. I wouldn't judge someone for doing it, but I would criticize their perspective if they thought that was normal, and I would try to figure out the context they're from where that's normal behavior, purely out of curiosity. If they're already in a social environment with me, there's already some social capital committed, so I'm interested to know more about why someone would think that's normal behavior.

"Internet guy that likes Halo" does not qualify, so, while I think you're being obtuse, I don't care enough about you to continue this conversation.