The answer is to help keep peace (With things like laws) and to keep everything running smoothly So things don't get out of control.
Pumpkins can be green yellow white red blue
so basically they can also be blue and yellow
Answer: This behaviour is an example of DEINDIVIDUATION.
Explanation: Deindividuation is a loosening of self-restraint when anonymous in a large crowd.
This behaviour makes an individual see himself as a crowd instead of an entity. This makes the individual do whatever the large crowd is involved in.