I get that it’s a deposit, but it still means I have to carry a coin, or some kind of slug. It’s one more thing to carry or think about, that other places don’t require.

Museums, libraries, and train stations aren’t places I go weekly, like a grocery store. When I do go, I can’t remember the last time I ever used a public locker. I can count on one hand the number of times I’ve used one of those in my life. I don’t tend to carry much stuff with me, so a locker isn’t something I generally need.