Character matters a lot, actually, in all areas that require social engagement or human interaction. I would not delve deeper on that as it will be an unending argument of different perspectives. But I'll be talking about why traveling might be a way of knowing a person's character.
Traveling, in a way, loosens up-tight and reserved people and that makes them vulnerable. By vulnerable, it means, one can see through them, like a transparent glass void of pretense. Normally, it wouldn't show at first, it'll just unravel in succeeding travels. Some though get the hint at the onset and decide from there whether to do it again or not.
