This is a well known issue but if, for example, you go in one of these countries forgetting that what is "normal" for you, about these issues, is not normal there (I had this experience), then you can find yourself in situations in which you expect something (for example reading from the left to the right as is in your habits) that cannot happens. And that generate surprise in you.
Cases like that are very important. Allows you to (ri)discover that your way of imaging or thinking something is only "one of the possibles" way. And not "the" way.
In the picture the results of a query with a "right to letf" Google.