REMINDER
A 2013 study analyzing 843 protests in 84 countries across the globe between January 2006 and July 2014 found that the main grievances were economic injustice and a perceived failure of political systems.
https:://www.latimes.com/world-nation/story/2019-11-25/iran-chile-hong-kong-protests-around-the-world
synopsis is many people are not satified with their government(s)