The world is a dangerous place. Heroes rise and die, curses are broken, only to be reforged stronger. But there is also good in the world, strangers that help without asking in return.
Humans, much like on Toril, are abundant and you're likely to meet them in most cities, while filled with a diversity of races. There are brothers run by tieflings, a casino run by halflings, and naturally the dwarven smithies will gladly offer their services, for a coin ofcourse.