you seem to be assuming that children have the same logical reasoning faculties that adults do. this is not the case.
Critical thinking and reasoning must be taught, and in the US largely doesn't until the college level unfortunately. Many adults, many parents have no logical reasoning faculties and never will. Some are very proud of this, declaring the whims and opinions that pop into their heads "common sense." I refer you to my fellow Americans who see salvation in a slumlord game show host nepo baby. There's a reason humanity spent 180+ thousand years wandering in the dirt before stumbling upon a less brutal way to live 10-20 thousand years ago.
Again, some like myself may seek out such information if they are starved of it at home, if they have access. If anything, getting multiple conflicting opinions tends to make a new mind seek out ways to parse the true from the false, and that chance is better than no chance at all.