I'd say Jörg (or at least his choice of lifestyle) is unique but not at all weird. I haven't been to Lugano yet but it sounds like a pleasant place and living as he does with "no particular debts or demands" sounds like a lifestyle of freedom.

He does indeed have my admiration for choosing his unconventional lifestyle. I typically enjoy reading stories of out-of-the-ordinary life paths and while many aren't lifestyles I would choose one thing I like about the stories is that they often give one an extra bit of confidence. As in: "If what I'm attempting with my life doesn't go as expected I can always try something like Jörg."

It certainly doesn't seem unwise to choose a simple caravan home and organ grinding lifestyle particularly if one doesn't have a family to consider. It could be perfectly fine even then. Certainly there are more influential ways to live both for better or worse but regardless I admire people who make a path for themselves.