How many kids go see action movies starring 80-year-olds? Did a lot of them go to see Taken? Then the movie is set 50 years ago with enemies from 80 years ago. I'm not sure how relatable it is for them, I think the points of reference have changed. When we went to Back to the Future as kids Marty only went back 30 years, that'd be like going back to 1993 now.My luke-warm take is that unlike Star Wars, there hasn’t been years and years of new content to draw in new, younger fans. All of the non-movie content for Indy came out when we were still young.
This is the first movie I have seen in a theater in approximately 2 years. So I would imagine a lot of the 45-60 year olds who grew up with Indy are waiting for the stream.
The only younger kids I saw today in the mostly filled theater were with their parents.
I think another factor is that going to a movie may not be as casual a thing now that the prices for so much has gone up. I bet a lot of families have been a little tighter on expenses.