The practice of Palmistry is found all over the world with many variations over the cultures.
What is palmistry?
Palmistry, is also called chiromancy. Its the claim of being able to tell the future and fortunes through the palm.
I see.  I don't really believe in that stuff.  What countries can you find it in?
It is found all over the world, but has its roots in Greek culture it seems.
I wonder how it spread all over the world.  Do they teach it to people, or do they think it's something you're just born with.
I imagine the culture may dictate that. It may be believed to be genetic or perhaps someone had an event that lead to the epiphany of the "gift" or its a necessary grift to get some tourist money!
That's about what I thought about the grfting.  It pulls in the tourists and relieves them of their money.  I'm sure there are lots of tourist traps like that all over the world.
Wall Drug in SD, one of the most widely known tourist traps got its start by just selling ice water!