People who are still afraid of dietary fat from the anti-fat craze of the 80s and 90s.

If you’re watching weight, cutting calories from milk of all places is the worst place to do it. At least from whole down to skim. All the healthy stuff actually just so happens to be in the tasty part, the cream, since milk does these thing of mixing the ”sugar” into the cream in the form of Lactose. Cutting that out just leaves you with a worst-tasting, less nutritious beverage aside from the fewer calories.

If you want fewer calories but still have nutrition, soy is the way to go.

It's cos it tastes better in tea.

I don't like the fatty bit in tea. I like it in coffee, but not tea.

Probably people who think it's healthier.

Tea. Whole milk goes in coffee, skim milk goes in tea.

If you're on a low-fat diet ordered by a doctor for some sort of health reason, or maybe if you simply prefer the taste of skim? I can't imagine anyone preferring it, but people do enjoy some strange things so maybe.

I haven't drank milk in decades but before I quit I was drinking skim because the milk with fat made me nauseous and it tasted better. Eventually even skim milk made me nauseous. Fortunately I have always liked my coffee black. Although I cut out caffeine a few years ago so now it's black decaf on a rare occasion. Yeah I'm fun at parties too.