it is simply some clothes that I've concluded aren't too far outside what I'm expected to wear
This is where you agree with the post you're replying to. The entire decision process of "what I'm expected to wear" is exactly what they're talking about. You're soaking in it, as indifferent as you appear to think you are is just one facet of accounting for fashion's role in your life, which, to be sure, is not absent.
The post I replied to said "everyone can look at someone's dress and decide if it's fashionable for their demographic." I cannot. I think I can mostly decide whether it's appropriate, but I'm not confident in that ability. I am quite certain I can't decide if something is fashionable, something the parent seems to imply is near-universal ability.
Acknowledging that I spend some time trying to meet the bare minimum of something does not support the claim that everyone can decide if something is fashionable, and more than my dad saying he occasionally opens the command prompt in windows supports the claim that everyone can program.
This is where you agree with the post you're replying to. The entire decision process of "what I'm expected to wear" is exactly what they're talking about. You're soaking in it, as indifferent as you appear to think you are is just one facet of accounting for fashion's role in your life, which, to be sure, is not absent.