According to this MCV piece, a GameVision report has shown that Britain has the oldest gamers in Europe, on average.
The research showed that 29 percent of male active gamers, and 30 percent of female active gamers are said to be 35 years old or over in the UK, compared with 24 percent and 25 percent in Spain and Italy.
No mention's made there of France and Germany. Which does, like, leave something of a hole in the whole "Europe" thing, to be honest.
“Generally any chat about the average gamer is a bit nuts – it’s a mass market pursuit now with the associated niches and segments – you can’t sell anything to gamers en-masse, you have to pitch it at the appropriate niche,” explained GameVision’s Sean Droomgoole.
More through the link.