>>1768153
>most subculture gamers are teenagers who barely have a decent cellphone.
A quick google search led me to a old 2009 pdf on the comiket site that claims that the average age of comiket attendees then was in fact, in their late 20s
https://www.comiket.co.jp/info-a/C77/C77CMKSymposiumPresentationEnglish.pdf