my kids are constantly taking their shoes off when we are outside, either on purpose or by accident.
they also LOVE to stand on the tile by the front door, which tends to be wet/muddy/dirty if i dont stay on top of it. (as in mop
every time a parent leaves....the joys of living on a dirt road
)
it happens.
buy cheap socks you dont care about and send them in those. your provider will thank you.