Yeah I always cringe so bad when I see those Lysol commercials that urge mothers to sanitize every surface their children would ever touch. People evolved to come into contact with bacteria, we didn't have antibacterials until very, very recently. I'm thankful that my mom let me be a dirty kid. I remember eating dirt and eating ants (I went through a phase of eating ants, I don't know why but I still remember how they taste). Yeah I got sick sometimes but in general I have a very robust immune system and hardly ever get sick as an adult. If you shelter yourself from "contaminants" too much, your body doesn't learn how to fight them off and you end up a sickly person.