I've found as I get older (in my early 30s) I've made more friends than in my 20s. I like to think I have become a better listener and more open-minded actually. I have drifted away from people I knew in the old days, but that is natural and to be expected.

I think it is about committing to making time for people on a regular basis, which is a lot easier when it is done for you in school etc. As you get older you have to take ownership of this aspect yourself.