I never had to question religion because I was not forced into a religion.
Basically what I'm getting from your post is you want to force parents' hands in telling their kids santa is real, so that the kids learn to mistrust their own parents. Wouldn't it be "simpler" to tell parents to be less awful at parenting and, say, for example, not choose their kids' religion for them?
As for "people lie", I learned that long before I knew how to multiply. I'm not sure how you can miss out on that lesson at all.