I don’t think so.
But your floor was just washed, you say? It hasn’t had time to collect germs, bacteria, and all sorts of yucky stuff? Guess again.
Think about all the places you walk in any given day. Outside. On your lawn. In your driveway. In your garage. Across the street. Down the sidewalk. In a parking lot. In the supermarket. In an office building.
Now think about everything that you might have and probably did step on and in as you walked around. All the microscopic viruses, molds, mildews, bacteria. All the animal droppings that are too small to see (rodents, anyone?) All the places where dogs and cats pee. Where men spit. Where people sneeze. Or worse.
All that yucky stuff is now on the bottom of your shoes. The same shoes that are now walking around your house, depositing microscopic bits of all that yucky stuff all over your hardwoods and carpets and tiles and linoleum.
Now, do you still believe in the 5 second rule?