Locals in Salvadorada

My Selvadoradans look like the Lost Tribe of Irish and Vikings, pale and red-headed or even blond. They are all correctly named with Selvadoradan names, but the hair/skin randomizer doesn't seem to have any restrictions on its range. There's also tourists in the area, sims from my actual neighborhoods, and they're always fully tourist-dressed, a bit like the tourists in San Myshuno.

All that said, they do indeed seem to stay the same despite being homeless townies. I guess there's a hidden trait for being a Selvadoradan and so appearing there.