Why does everyone who meets him want him to be a cowboy?

"Vaquero," he says, showing off his outfit. The lasso is only part of it, the rest of it covered a little with a jacket, but he's still got his pants, spurs, and hat on. "I know it's a different language, but to me, it makes a difference," he insists, before the man can say that it's the same.

"I'm Vasquez," he introduces himself. "You never knew a cowboy?"