In Australia, the term was different: they were called “swagmen” or “swaggies,” named after the rolled-up bundle, the “swag” they carried.
So, whether you call it tramping, swagging, or waltzing Matilda, Karl wasn’t just observing; he was seeing echoes of himself. A man in motion. A vagabond of sorts, living, in many ways, off the generosity of strangers.