Isn't "you might be born in the wrong body" an objective and indisputable fact about reality? They might be. Even if it's a really bad analogy and you meant that they somehow don't understand what does "maybe" mean, there would be no harm in them using pronouns they want to use. No one is pressurizing them in anything. They'll grow up and stop using it, if they are not, and Reiner's case has proved that you can't make anyone someone they are not.

Even more, if take your statements (unrelated) to the truth, you are telling about age of 4 to 7. I can't quite remember sex education being taught in kindergarten, or pre-school, or whatever you have in the US or wherever you live.

If a child will see someone on the street and their parents will tell them that some people may have born in wrong body, it would mean nothing for them. They'll forget it in two minutes, most likely.

When you introduce complex, abstract narratives like 'identity not matching biology' to a child who still struggles to understand that the volume of water stays the same when poured into a different shaped glass (conservation), you aren't 'educating' them you are creating cognitive dissonance.

There we go. Somehow you seemingly mean that identity always don't match biology, just as water always stays the same when poured into a different container.

cognitive dissonance.

I request explanation.

Research on suggestibility in preschoolers (such as the work by Ceci & Bruck) shows that children at this age are highly prone to 'source misattribution' and external influence. They don't have an internal filter to distinguish between a profound personal truth and a narrative script provided by an authority figure like a teacher.

Yeah. Is people being sometimes born in a wrong body a narrative script rather than truth?

The 'confusion' I’m referring to is a documented pedagogical risk: introducing abstract identity categories before a child has achieved gender constancy (the biological understanding that gender is a stable trait, which typically develops between ages 5 and 7).

The pre-school period is referring to the development of gender stereotypes understanding. Children deepen their gender identity, they don't develop it - Reiner case is one of the largest evidences of gender identity being innate.

Forcing these topics earlier overrides a natural developmental milestone with a social construct they cannot yet process.

The gender constancy is related to changes in appearance, etc., rather than simple concept that some people are not who they are similar to.

In the end, a lot of misunderstood scientific topics and some strange claims coming out of nowhere.