I would also caution any parent to observe the rule that anything your child is reading or about to read, you read too. Ideally you read it first. You have to be the judge, in their childhood, of what media they consume, because you as their parent know what is appropriate for your individual child. Fundamentally, if you don't want your children to read three Kamala Harris biographies, it is well within your parental power to prevent that. I confiscated both Brenda is a Sheep and Julian is a Mermaid before they were read, when they were sent home as 'free gifts', because I don't consider either of them suitable.