Sharing socks. My family used to have a sock basket next to our shoes. You didn’t own your own socks, you just grab a pair when you need them.
I mentioned “the sock basket” offhand to a friend in elementary school and she thought it was crazy. That’s when I learned that not every family has a community sock basket. Looking it up though, I find a couple reddit threads from people with the same experience (and people replying that it’s weird) 🤷‍♀️