More like meta-cooking question, but I believe it fits here better than on travel stack.
All around the world, one of the symbols of Thailand is Pad Thai. And multiple versions of curry.
But when I wander around Bangkok or other Thai cities, I see pad thai served mostly in tourist areas like Khao San Road and its surroundings, around the Royal Palace, etc. When I look and most food street carts there are plenty of sticks (meat/fish/sausages/balls/seafood put on short wooden sticks and grilled over fire), soups (tom yum based, clear soup with noodles, wonton's), many kinds of meat, seafood, noodles (though not strictly pad thai I think) and so on. Not that many curries either, but in more in-house restaurants you can find them.
So my question is - is the pad thai really Thai? Maybe I'm just overlooking it, or search in wrong places. Or is it a dish once found by a western traveller, made famous in the West and then its renown came back with the travellers.