I want to become a hobo. Is it dangerous?

Are you serious? Yes, it is. You could freeze to death, depending on where you live. And a friend of mine was homeless for quite some time and almost stabbed to death when he was camping out in a park. So yes, it's very dangerous, and I wouldn't recommend it. If you have your own place, you should be very thankful for that, as not everyone is so fortunate.