Once you find the "right" person (which most people admittedly never will because they don't look for the right qualities) what's the point in waiting? And incidentally, we don't plan to "procreate" for at least 4-5 years...
Your ideas of marriage/commitment/relationships are obviously much different than mine... If you think marriage means no "fun" then you're screwed already and should never get married... I was happily single and having fun for quite a while before this relationship and am still so, so I don't see your point...
People change between 30 and 45 too, but you wouldn't know it cuz you haven't lived it yet... All the below says to me is that you're not ready for a serious relationship at your age, which is perfectly fine, but that doesn't mean that it applies to everyone... Like you said, you wouldn't consider dating a girl now that you did in high school, while some people are happily married to their g/f's from high school...
This isn't an issue anyone can be "right" about, it's all up to whatever makes you happy... And if you think you know what makes others happy more than they do you need to put down the crack pipe and smack yourself with it...
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<< own reservations (read: fears) regarding commitment.. >>
Explain to me why you would need to be married at your age? Its not fear, its good sense. a girl I dated in high school, I wouldnt even consider dating now- people change. When does the most change in your life take place? 0-25. Why get married? why settle down? If you love each other so much now, is that going to change when you are 30? So wait till then. If you dont procreate, or marry that person, or even move in with them, if things dont work out, you book. If you "seal" it, in any of these ways, you are screwed when you want to leave. I am just advocating fun. As much fun as you can have. Thats what life is all about. If you dont like fun, or you cannot live without someone in your life, dont listen to me. >>