It's kind of an investment. It's a chore to begin with, that hopefully pays off in the long run.
Moving to a foreign country with an unfamiliar culture and language, and establishing a new life there, is a chore. Probably even more so if you don't have a spouse or something who's familiar there:
Learn the language, the culture, establish or reestablish your daily habits, find new friends and ways to socialise, perhaps new hobbies if the old ones aren't available. Find out where and what to shop and how to cook, when the stuff you know is gone. Turn your house into a comfortable home, etc.
If you're older you might not feel that you'll get to see much of the payoff.
I also imagine it gets harder to find people who are open to new friendships, as you get older.
Moving to a foreign country with an unfamiliar culture and language, and establishing a new life there, is a chore. Probably even more so if you don't have a spouse or something who's familiar there:
Learn the language, the culture, establish or reestablish your daily habits, find new friends and ways to socialise, perhaps new hobbies if the old ones aren't available. Find out where and what to shop and how to cook, when the stuff you know is gone. Turn your house into a comfortable home, etc.
If you're older you might not feel that you'll get to see much of the payoff.
I also imagine it gets harder to find people who are open to new friendships, as you get older.