Drugs have been an issue for awhile. It is used all over the world. It can cause many issues that can claim lives. It should not be used in the US so it should not be used anywhere, but it is.
Communication is hard to do when you are off to a different part of the world than your own. It is hard to get used to the idea that they are different and the way to communicate will be different.
Crime is an issue throughout the world and how to handle such crimes are different. Some countries have more crimes than others and how to deal with more crimes comes with more security; same with high rated crimes.
Culture is same with communication that it is different with countries.
Discrimination is highly rated everywhere because wherever you go you will find some discrimination and maybe yourself that is getting discriminated.