[fowl338]

> It would be a huge undertaking for my wife and me to uproot our lives and move to someplace exotic and different, but even if we were to do so, we couldn't move to everywhere exotic and different. And anyway, we wouldn't be "starting a new life" there in the same way that a young person would.

I say this gently, but it sounds like you're trying to find reasons why you can't move anymore, none of which are very convincing.

Of course you can't move to everywhere exotic and different—that was never possible even when you were young. Of course you can't start a new life there in the same way that a young person would—even as a young adult it's often impossible to integrate as deeply as someone born there.

If that didn't stop you before, why does it stop you now? Do you perhaps simply like your current life enough that the incentive to move is much lower? If so, that's a great problem to have and should be celebrated.