Since we love talking about age gap relationships around here, I thought I would ask the question of what is considered too big of an age gap between two people, and what age gap is considered doable. I am asking because I know I will get various answers. To me if the younger person is 21+ 5-7 years is not that big of an age gap, hell, I don't even consider it as a age gap. 10 years is an age gap but is doable, but 15+ years is too much for me.