I remember being in first grade and this white boy asked me why I wear "normal" clothes if I'm Indian and don't Indians only wear feathers? So yes I do think first graders need more awareness about race

Also Sesame Street was made by a bunch of hippies that loved puppets and educators that were trying to reach in-city kids (particularly kids of color) who didn't have access to good education resources.

Sesame Street has specifically addressed racism and other forms of socially oppressive orders since the beginning. Once again Rave Dubin is a moron.