I have friends with kids, have siblings with kids, and indeed did grow up in the US. Ate cereal growing up with maybe some eggs on the weekend. My siblings feed their kids exactly what I described. My friends feed their kids the same. I have no idea how that is out of touch, but I grew up lower-middle class and that's my lived experience.
It's more how you said it than what you said.
I grew up similarly but regularly had eggs for breakfast, at least some of the time. Usually on toast. When eggs are cheap, that is competitive with cereal or pop tarts.
I would have hoped that better access to nutrition information would have led to parents making better choices. Absolutely insane that they’re still choosing desserts for breakfast every day instead of high quality Whole Foods like eggs.