some additional data age distribution (pew research 2015) "Although playing video games is especially popular among young adults, a substantial number of older adults play video games as well. More than half (58%) of those ages 30 to 49 play video games, along with 40% of those ages 50 to 64 and 25% of those 65 or older."

I'm pretty sure this was different in the 80s.

http://www.pewinternet.org/2015/12/15/who-plays-video-games-...