I like travelling, and when I was younger I used to enjoy visisting new places and wandering around. As I've got older I've found that it's become harder to do - I get tired faster, and some sensory issues are worse.
There are a lot of people on sites like Couchsurfers who have adopted that kind of lifestyle, for a while at least. It's good for students or people on a budget who want to see more of the world, but some do it not because they are lacking in financial resourses but also because they enjoy the experience. Couchsurfing may not appeal to all people on the spectrum because of the social aspect, but it might appeal to those interested in cultures, languages, etc. Some couchsurfers can be quite eccentric, and interesting people, if you like that kind of thing.