The big difference though is that (hopefully) people wash their hands throughout the day and should be cleaner and less smelly than someone popping out their smelly feet and cleaning out their toe jam

Anyone ever had someone CLIP their toenails onboard? Hopefully we can all agree THAT would be too much

For safety, I don't ever take off my shoes till we're airborne and I put them back on before landing so if we have to evac suddenly I have some protection.