“Serious question — who reads comic books?”
Most of the people who read them nowadays are hardcore “comic book nerds”. There were still a lot of kids reading them in the 80s/90s, but they don’t sell them in regular stores anymore. You either have to get a subscription, or go to the comic book store to pick them up now.
I’m 30 and comics were popular when I’m growing up. You’re right, only comic book nerds read them now.