How about a validation system for people, like a regular passport.
Maybe some type of electronic passport.
Could be used by chat room providers, social networks etc. to prove identity and avoid any of
the issues relating to people misleading others about their age, gender, etc.
Possibly going forward it could be leveraged to governments etc, replacing the 'paper' passport system.
I know there will be issues relating to 'data protection' and so on....so would need
quite a lot of investigation/analysis and probably strict standards set on whats allowed for 'validation'.