Comment by ACS_Solver

However, protective equipment is taken seriously and then shoes stay on. Here in Sweden, of course ordinarily all shoes are taken off (for 8-9 months of every year they're wet and dirty) but if workers come in to do some work, they keep their shoes on because they're protective equipment. If you're having them come during a particularly dirty time of the year, you may want to cover your floor with newspapers or give them shoe covers.