Do your clothes wear out?

Mine rarely do. It seems like they last forever. I wash my clothes every time but they still last for years. Underwear, shirts, jeans, coats, etc., they all fit and they’re all in decent shape.
I’m the same size I was 30 years ago so everything still fits perfectly. If get a pack of new undies, I’m reluctant to use them because my drawer is still full with good ones. Socks do wear out and I do occasionally damage shirts and jeans with grease stains or chain saw mistakes. I use those for doing dirty work. My other clothes stay nice.
I figure I’m supposed to want to update the wardrobe but everything is still good. Why buy new stuff when the old is still perfect?
Why do normal people do it? I see them in the store buying clothes and I want to ask if they use too much bleach or if their washer agitator is too aggressive.
I know styles supposedly change, but they really just repeat and I already have the full spectrum. Why bother?