So first of all let me tell you that it does indeed depend on where you live. So it would have been very useful information if you had stated where you live. Since you didn’t state it, I assume it’s in the US, since for some reason, people in the US never seem to see the need to state that they live in the US (not all of us do).
Secondly, I really am sorry for your situation. There’s a lot of wrong things with society. One of those things is that it’s difficult to meet new people. Another, in my opinion, just as bad thing, is that one has to drive. Basically, people didn’t drive before 1800. Driving is the exception in history. I don’t see how or why people think these days that it’s completely normal to drive, or to have to drive. This has nothing to do with your post, but it’s still something that I’m thinking about. Sorry for the random side-rant.
Thirdly, I have found that it’s often best to search for like-minded people, and just randomly go to them, say to them “hey, can I sit with you”, wait a few seconds, and if they agree, sit down and just say “hi” and “i’m [insert name] and i’m from [insert location] and i’m looking for [insert any random hobby or activity you like]”. most people react by either agreeing or declining, and such is life.