Not a party girl. Alright, so maybe OkCupid en masse follows dating age conventions, but what about those women who want to flip the norm on its head? Is this a humblebrag? That isn't too big an age gap. I should add that because of her childhood she was and is more mature than me. Different life places will account for most of it.
The title of your post must contain your actual, concise question.
I just turned 25, and I'm still absolutely figuring it out. We are both interested in having children, just want more stability and for her to be generating a decent income. It probably won't be forever because by the time you start thinking of buying a house, she's thinking of going on spring break. It is a non-factor for how long a relationship lasts. Yes, you're both adults, but she isn't done maturing. The best advice I could give you, personally, is that her parents may be somewhat disapproving and it is very important that you respect their concerns. IMO emotional maturity is the most important thing.