It would be appropriate for all Christans and Jews to begin using said footbaths several times a day. Every day.
You can never have feet that are too clean.
How about a bar of soap made from pig lard?
Actually, those aren’t foot baths they are just clogged storm drains filled with icy slushy water. Normal this time of the year in Boston.
My feet have “little piggies” on them. May I use these footbaths?
Just thinking out loud now, but since two airports have installed foot baths, perhaps, hygienically, passengers should use the foot baths AFTER the TSA shoe inspection (who knows how much fungus we pick up?).
That’s not all I would wash in there!