I don't want to downplay the importance of diverse academic backgrounds, but representation of immutable characteristics (gender identity, race, disability, etc) usually get the most attention because they are essentially always the things that have impact on kids. Your little girl or your autistic child is going to pursue paths they maybe wouldn't otherwise take because of representation. The earlier you get a child to engage with something, the better their outcomes with pursuing it.

Representation is literally about people seeing themselves. If you can't nail down what "people like me" look like when it comes to representation, it might be that representation isn't quite the right way to frame the problem. It's only one aspect of diversity.