ESRB is too complex. I feel that it should be simpler.
Everyone (All ages)
Teens (13+)
Adult (18+)
You’re right that someone will pick the young age option as a joke. I think if there is going to be a rating system then they should take it seriously when choosing “Everyone”. If not then strike for misuse? And, if they get 3 strikes then they get banned???
I think your content descriptions is good.