They aren't "not caring" in a sense they don't spend a minute of their time choosing clothes. It's not a binary choice. Not caring in that context means minimi

They aren't "not caring" in a sense they don't spend a minute of their time choosing clothes. It's not a binary choice. Not caring in that context means minimizing effort, time spend and external impact on their lives, while maximizing comfort. Buying what everyone else buys maximizes that value. I would say I don't care about clothes, but had to make some choices when I got cats. I used to wear primarily black clothes, but cat fur is extremely visible and hard to get off them, so now I just buy diverse colors, while still not caring whether the green is too bright and goes with beige or whatever.