Posting to follow. I'm sure this will be an issue for me sooner rather than later, but right now it's not too difficult since no one expects me to do anything special in my 20s (other than spend my money on stupid stuff). The only thing I can think of is to try to be as light-hearted as possible, maybe make a joke at your own expense and change the subject? Try as hard as you can to force the conversation back to them, ask THEM the personal questions, even if you aren't particularly interested in their life. Be quick about it. When someone asks if you have kids for example, say "Nope! What about you, do you have kids?" Then immediately ask a follow-up question about their kids before they even get the chance to think about you again. Maybe even as they're describing their kids and before they even finish talking say things like, "Oh cool!" or "Awesome!" (Just an example, no idea if you have kids or not) People love talking about themselves, I would just try to turn it back around as much as possible.