You might be talking teenagers but according to the MPAA "TheatricalThe superhero demographic is way younger than that and we are talking teenagers.
Marketing Statistics" 2015 (the 2016 one hasn't been released) the
typical age of the superhero movie goer is 22 to 36. Teenagers make
up about 12% of the total people who see superhero movies in the
theaters. That rises to 22% for home media - still lower than the
20 and up demographic. For home media the 40 to 60 demodraphic
is higher then the teenagers - 34%