I'm an oldster at 79, but my hand eye co-ordination is as good as ever. The real funny part of that statement is that I only have one eye and no fingers on my left hand. So in my case hand eye co-ordination would be a real fun thing in real golf, believe me I tried in my younger day.
I agree with some of the posters who maintain that this game is not age related. I probably will play this game until I' m ready for my dirt nap. Wether I'm good or bad at it makes no difference, I just enjoy playing.