I am 55 and don't have much trouble following the ball, except one hole that I usually play right in to the setting sun. I see my drive on that hole about 2 times out of 5. Some of my playing buddies might say the reason I can still follow the white ball is because I don't hit it far enough to lose it, but what do they know?
I prefer white, but have nothing against colored balls and have used them. Back when they first came out, I was hooked on orange for a while.