Why? A wash at 90°C pretty much sterilizes them?

I don't think I'd have found it disgusting pre- children, having been through the same myself, and barely ever having had new clothes throughout my childhood. Second-hand is just normal.

However, have kids changes you - the green poo newborns have is pretty vile, but it's less vile than preparing raw chicken, say, for me. You don't have a choice, you just have to do it.