I wish I can have the ability to travel like him. Going to places that I have never been to before will actually be more relieving to me than stressing. I don't see why that is such a big deal to you, and how exactly is him traveling mean "throwing everything away"?
Boo hoo somebody isn't happy with the things that you believe will make you happy. So sorry that somebody doesn't like the same things you do or has different things that make them happy than what makes you happy. Didn't know everybody had to conform to your beliefs, ideals, and values.
Grow up. Stop being a jealous prick and let this person travel if it makes them happy.
You could say I have a pretty good life, too. I come from a well-off family with two parents and three sisters, I'm going to one of the best music schools on the west coast, I have pretty good friends, etc. But all of that doesn't matter because of the way my brain works. I have high anxiety, which makes it hard for me to do a lot of things, like make friends, do homework, check my email, it's even hard for me to be assertive, so it's hard for me to deal with people who don't agree with me. I also suffer from depression, which just prevents me from being happy sometimes, even when there's no reason not to be upset.