I'm 30. My girlfriend just turned 33. All the girlfriends I've had were at least a year older than me. My first year as a resident at OHSU, I dated a veterinarian that was 36. I was 24 at the time. Age difference depends on the age group more than the age difference. I was perfectly comfortable dating a woman 12 years my senior when I was 24. I don't think I would be comfortable dating a woman 12 years my senior now. Conversely, I don't think I would be comfortable dating an 18 year-old girl, either. But if I were 34 and she was 22, I would have no qualms about it. It all depends on the age group, really.