Me and my girlfriend have been having this ongoing debate, and I'd like to see what others think is the best age. When I say "best age" I mean the age where you are old enough to be financially stable and responsible, yet young enough that you're not quite over the hill. I say 28, she says 25:surprised. I know it's only a three year difference, but theres a lot of change going on in those three years. Someone please assure me that 25 is too young!