Yes, there's part of me that says that I'm going to be old and alone, but another part of me wants to know what's wrong with that scenario?

Doesn't follow, anyway. I'm going to put my foot in my mouth and make huuuuuge assumptions, but I can see no reason why lack of partner(s) and/or progeny should lead to being alone. In fact, I'll be even more provocative and say that anyone who is alone and lonely has made a choice to be so, whether explicit or implicit.

I'm alone, physically, much of the time because Jus is out at work a lot, but lonely? No. I have a telephone, I have the 'net, and if I want physical company I can (unless I'm feeling too sick to go out, in which case there are the first two options, or I'm so sick I don't want company) get on the bus into town and have a coffee in Browns, or do any number of things - the depression support group, the writers' group, the library users' group...

Yes, of course, I'm lucky in that I have regular bus access to a moderately sized town, I'm usually able enough to use it, and I have the confidence to talk with people.

Go on, shoot me down in flames! :)