well if he is working for a reputable legitimate business like Siamroads I assume he is a suitably qualified national of the country he is working in or at least is in that country with the appropriate visa and/or work permit and also has the local knowledge to work as a guide - after all I certainly would not like my Siamroads guided holiday spoiled by a police raid for illegal workers or an incompetent guide
and I have always been surprised that a reputable legitimate business like Siamroads which spends so much time stressing that its guides are not just sex workers feels the need to stress the attractiveness of its "guides"
bkkguy