I believe that people could be more tolerant if they have traveled more or have learned about their culture. If someone has traveled a lot, then they could understand the struggle of moving from one place to the other and dealing with difficult changes. Changes in time differences, weather, language, culture, and just people, in general, are all very difficult to go through, especially alone. If a traveler met someone from a different place, then they will most likely be very nice to them since they know what they had to go through to get to a new place. Being in the military would definitely make you more tolerable in that kind of situations since you move around a lot for the job. I also believe that being in a language studies class, or just learning about language and culture, could definitely help people become more open-minded. This goes a lot with travelers, you learn a lot about the people who speak the languages that you are learning. You then would be able to see how different their lives are in those kinds of places, and it would make you be more open-minded and caring to those people once you meet them, because then you know how much they might be struggling to adjust to their new lifestyle. It's difficult for some people to understand how hard it is to adjust to a new lifestyle or to move and travel in general, so learning about those things and taking classes for it really helps. I really do believe that they help you become more open-minded and tolerable to those kinds of people.
Please, just use this as a rough draft or change it up a little. You could make it sound more like you or write something based off of it but I didn't try my hardest on this.
I hope you get a good grade though! (also check spelling)