>>108528294Speaking from experience?
Yeah they do. Speaking as someone who works at an elementary school, kids from 3rd-5th really like the characters of the show and are familiar with them. It's a show, with weird alien girls and a kid, and some songs and occasional action bits and "oh boy is the green one funny". They also don't really quite have the fandom level attachment to it, something that can be attributed to haituses, but I doubt it, since yeah they don't even have that much attachment to things like Teen Titans Go.
The kids where I work seem to do a much better job following superheroes and anime. They really seem to be more into the characters and characters in general. Tons of kids into Black Panther, Superman, Batman, Sonic, Spiderman, SpiderGwen, Wonderwoman, and yeah even Ms. Marvel surprisingly compared to Captain Marvel. There was one 4th grade kid who would not stop going on about Madara whomever that is. Like traditional fandom stuff seems more often to spring from sports and videogames. Players or even the very act of playing b-ball, or how "Cool Mortal Kombat looks" or "The horses can go poop in Red Dead" and even playing pretend Subnautica.
I'll freely admit that they just might not be old enough to get to the point of liking things a whole lot. But being able to pick and choose what they play and watch whenever might have a role in them gravitating towards certain videogames and comics-y stuff. There was one kid graduating into middle school who was trying to sell me on the Umbrella Academy at one point, in the same breath as some zombie show with some pretty boys in it. Needless to say they were wowed at A) Oh shit its a comic book? and B)What's MCR?