Reasons to see League of Legends (LoL) competitive play.
Example of parenting advice strongly negative to gaming. Note: There is no date stamp on this, and the research it cites is from 2004. This means it may not be representative of today's advice, which mostly is a bit less absolute.
Links to digital game statistics 2015.
More game statistics
Guardian article on numbers of gamers
1993: Close ties between Hooligans and racists.