Everything can be said to brainwash children, Musket, and what is foremost in brainwashing them, as far as I'm concerned is the endless political propaganda foisted on them by governments, political parties, politicians, and the media...oh, and commercial advertising and entertainment, of course, which brainwashes them into buying all kinds of things and living a certain lifestyle!

Most children are far more mesmerized by those 2 huge influences than they are by religion, and give far more attention to those as well. It's primarily adults who are really interested in religion, not children. Serious interest in religion generally arises in the late teens...or considerably later in adulthood, but belief in political and commercial trends is established from a very early age in virtually everyone.

Religion is a minor force now in the developed world compared to what it used to be...but politics and commercialism absolutely dominate present society. So, why are you worrying so much about a mouse, when living in the presence of a hungry tiger and a rogue elephant?