Dear Old Soulful,
From the way you wrote your question, I have no doubt that you do have a sense of maturity (and wit) of an old soul. My partner is fourteen years older than me, so I've had a bit of experience with this. The conclusion I've come to is that, at times, age difference can matter. But it doesn't have to matter a lot.
One of the more difficult things about getting into a new relationship with an older man is that when he recalls his fun anecdotal stories from ten years ago or something, it's a reminder that you haven't yet reached his "ten years ago" at your current age. And you won't reach it for a while.
It's a reminder that you have a lot of living to do... while he has already done a lot of living. To me, this is the biggest obstacle to face. You may still want to get out and do tons of things while he has "been there, done that" and would rather stay home.
The best way to resolve this is to respect each others differences and allow each other to be individuals. Neither person should try to push the other to be more like them.
Studies have shown that when any couple makes each other their entire world (and must do ALL activities together), then they run the risk of losing their sense of individual identities. This can then cause either person to rebel against the relationship (i.e. cheat) even if the relationship is on good terms. This applies to all couples really. But is especially important for a couple with a big age difference.
Thus if your idea of a good time is to go out to a bar, and his is to go out for a nice dinner, then learn to do those things separately. Let your friends be the outlet for your different interests. But keep in mind, it's also good to occasionally float on over to the other person's interests. Occasionally go with him to a nice dinner while every now and then he joins you at a bar. Occasionally.
Otherwise, figure out your mutual interests and spend your relationship energy on those activities. It's all a balancing act really. If done well, then you can really help balance each other out. You can help him gain a sense of youthful energy while he helps bring out even more of your maturity... all while be conscientious of maintaining your sense of individual identity.
This is how my partner and I approach it. We have 14 years between us and he is an introvert while I am an extrovert. Two or three nights a week, I go off and do the things I enjoy, and he does the same for himself. For the rest of our time, we spend our energy doing what works for us together as a team. We have been together for 10 years and still going strong.
In the end... communication, honesty, and humility are key. Fortunately, these are easier to achieve with an older guy who has gained some wisdom over his years. When you respect your relationship, your relationship will respect you.
Best of luck,