Why is the example below considered a theme and not a plot summary? true friends will always be there for you when you need them.

This is a theme because it is a concept NOT the story line. A plot summary is basically the story line as if you were writing a summary of the book or story.

Some cultural backgrounds have different superstitions or customs, this can play a part in how they decide things. superstitions are important to a culture for example, an asian culture has a superstition about women putting their purses on the ground their money will be gone, therefore people in that culture try everything they can to not let their purse touch the ground in fear of it being true. also like how we avoid walking under ladders in fear of bad luck. customs may also play a key role a custom also know as a tradition, is something people in the culture have been doing for generations as a quick example, if a family has a necklace that the family's mother passes it on to her daughter in so on it's a custom in that family.

Afar as i know so yea