Exactly My dd is 4y/o.when she was a baby ,I let her crawl on the floor,hotel floors, play in the park,in the grass,dirt whathave you.I cleaned her when she iwas done.She has been sick( colds,diarrhea,flu ) a total of 5 times her whole life.I don't go nuts with the sanitizer either.Kids won't die of they get a little dirty.I admit the thought grossed me out initially, and then my grandma yelled at me .." you kids today are too darn clean for your own good"
I let my kids get germy, and they were sick, as babies and toddlers, all of the time (we were out and about, mommy and me classes, playgroups, etc.). However, once they were school-aged, they NEVER got sick - they were done.