1. 14, adore video games.
2. I don't think there's an age, My uncle's well into his 40's and is a complete game nerd, there is no age, but there is a TIME to stop playing, when video games become a top priority and you have more important things to worry about, or if your world revolves around them.
3. I guess it's that "Alternate Reality" thing, the sense of "What if this happened" alot of guys like the idea of video games cause they let you do things that you wouldn't normally do, sometimes even things that are unhumanly possible! Specially online games, I'm a big freak for Grand Theft Auto IV on my xbox 360, purely because i have around 7 or 8 other school friends who play it online aswell, we always end up playing in the same game, stealing cars, shooting each other, flying helicopters. it's fun to do that stuff with someone who lives 10 kilometres away, yet on the screen you just hopped in a car with him lol.
4. I would like it, to some extent, but if it was expensive, or if she went to a big trouble to find it, i guess i wouldn't really like it if it caused her stress trying to find it, if finding a game is too hard/tedious, i'd rather lie down with her and play one of my old games.