The Nanny Mystery

If you have younger children and can afford it, you get a Nanny. They are called Babas actually with the accent on the last "a" in case you wanted to know. What is the mystery you ask. Well their uniform is white. Whit T-shirt or blouse and white shorts or jeans and white tennis shoes. Why the heck are they wearing white? They are taking care of children! Children are dirty! Well mine were at least. Always. But these women are never dirty. Their clothes stay pristine! How they hell can they do that? I can be five feet away from somebody who is eating spaghetti and still get dirty! Hence I rarely wear white. And I do not see bleach here in Brazil. I am sure something exists for whitening because these ladies are just way too clean. How the heck do they do that?