Cycling.
Denim jeans have to be the most inappropriate clothing for cycling in, what with that big seam joint right at the main pressure point where you sit, I tried wearing jeans once on a bike, it was horribly uncomfortable, which is why I bought proper shorts and long leg trousers designed for cycling in.
And the few times I wore anything out through the seat, was because my job involved sitting down the whole working day, and I didn’t have many pairs to swap around. Now I have loads of combat/cargo-style trousers, jeans, lightweight walking and climbing trousers, shorts, that I’ve worn for many years, which, apart from a couple of instances like my Trolls which snagged and tore slightly, are still completely intact twenty-odd years on.
Mainly because the wear gets spread out, I don’t wear one pair constantly, I’m always swapping them around. Just like I do with socks; I’ve got a drawer full, each pair gets worn once then goes in the wash, some of my M&S socks are getting on for twenty years old, and only now getting a bit threadbare.
I guess I’ve accumulated over a dozen different pairs of shorts, if not more, some are Kona and RaceFace, even a pair of Large Hardware cycling shorts that I often wear, none have worn out, ‘cos they’re only worn a few days at a time.
Spreading the load = less wear and tear. Simples.