Video games are available to people of all abilities. You certainly can't say the same of football (indeed, with concussions, one might question if this lowers intelligence over the long term)

I'm actually really curious what effect playing fast, twitchy games will have on things like reaction time as one ages. Would be interesting to see long-term studies on the subject.

I don't understand your reply. This is a thread about the impact video games can have and whether they are positive. How is it not relevant listing a few examples on how specific games could improve certain areas of a person?