It's for a center were we are about 40 men to share showers. I go there for a couple of days every two months. Last time I slipped and I already had athlete's foot. And it's a good idea to put in a bug-out bag in case you have to evacuate in a public shelter, and also for occasional camping trips and gym, public swimming pool, etc.
BTW, are flip-flops enough to prevent ancylostoma infection (hookworms) at the beach?
Frankie