you’re free to stop participating any time. If you decide you no longer want to follow their silly rules then you don’t have to.
Sorry, nothing personal, but this is remarkably out of touch with reality. You frame it as being just as easy like not believing in Santa anymore. When children are raised in strict religious conditions it often means their entire identity and social structure is built around it. The slightest hint of doubt could mean negative repercussions, and wavering faith or leaving it has a high likelihood of being ostracized by the community. Not to speak of severe punishment. Moreover, brainwashed people lack the cognitive capabilities to question themselves. I'd even say the majority of humans struggle with this whether they are religious or not.