Anybody who has done laundry is, or at least should be, aware that socks don’t mate for life. Whether it comes out in the wash or not, often one sock ends up hung out to dry.
What can be done about it?
One can have an orgy of foot coverings. I wear mostly gym socks. I buy several identical pairs at a time. It doesn’t matter how they mate then. In fact, they are neither left nor right so they can go either way. That’s convenient, and I would say rather Liberal of them. Since they can also go right that really doesn’t convey a political stance. They aren’t in the closet. But they can get in a snazzy dresser. The crew could have a tube in the drawers. I’m sure some would like to hose the fishnets.
Those are eraser caps on the ends.