As a mom with a lot of OCD recovery, I try hard to make peace with some of my obsessions so that I don't pass on this kind of neurosis to my children. I figure they are already genetically primed, let's not make it more likely. I realized however, that every time my daughter went to drink from a water fountain, I cautioned her against it. She didn't like that, and would sneak away to drink, despite how I felt. I don't want to argue with my kids about things like this.
When we were flying home from our recent trip she snuck off to a water fountain right after I told her not to. I was through. I decided to make peace with my daughter's decision to drink from them. I explained to her that I was going to let her make her own decisions about them. I explained why I don't like them, but that I was backing off. If she wants to drink from them, it is up to her (she is eight years old).
I decided to use my AA training of "not running the show"and take a spiritual approach to "Let Go and Let God". My daughter has her own "Higher Power" and I am not it. These are common 12 Step approaches to accepting things we cannot control. On a cognitive level I realized that as my children get older, I need to relinquish control over their exposure to "risks" in the environment. I'd rather they get some community illnesses than grow up with a neurotic mother.