For many religious people, raising their children in their faith is an important part of their religious practice. They might see getting their kids into heaven as one of the most important things they can do as parent. And certainly, adults should have the right to practice their religion freely, but children are impressionable and unlikely to realize that they are being indoctrinated into one religion out of the thousands that humans practice.
And many faith traditions have beliefs that are at odds with science or support bigoted worldviews. For example, a queer person being raised in the Catholic Church would be taught that they are inherently disordered and would likely be discouraged from being involved in LGBTQ support groups.
Where do you think the line is between practicing your own religion faithfully and unethically forcing your beliefs on someone else?
Definitely think that kids should be explained different beliefs early on… plus they should be respected if they don’t want to follow the same beliefs, and be able to opt out of any traditions… though I suppose the faith I follow tends to be a lot less “damned to hecc” than some others, so to some parents if breaking a tradition means making their kid go to hell that’s probably a lot tougher of a thing than im imagining it to be