Yes, and “travelers” have historically had their own systems of law and governance. The US military being an excellent example. Extraterritoriality for merchan

Yes, and “travelers” have historically had their own systems of law and governance. The US military being an excellent example. Extraterritoriality for merchants was a big thing in the 19th century. Ecclesiastical laws was a big thing before that (not all clerics were travelers - monks needed their own legal system for the opposite reason). But nobody said “screw physical jurisdictions” - they just created a new, non-territorial jurisdiction for a select few.