Not an older person but I genuinely don't like wearing jeans and t shirts and I never have. t shirts make me feel like I'm trapped and jeans are stiff and unpleasant (and always feel shaped wrong.) Also wearing what are essentially corporate ads on my body just feels brain dead.

Shorts and a Hawaiian shirt are comfortable but I guess that's still not ok in the office even though everyone wants to pretend they don't care.

Whatever it's not like I'd accept a non-remote job these days anyway.