Having a government makes it difficult to do many things. For example, most people are not permitted to own weapons. People on Earth are not allowed to defend themselves. They have to call on the government to do that. The government provides protection by means of police.
Police are individuals employed by the government.
These individuals are armed and have more rights than others. When someone reports that a rule has been broken, they come and put the offender into a cage. Every time someone does something that hurts someone else, or even if someone hurts his or her self, they present the situation on television, exaggerating the details, and sometimes, making the whole thing up. On Earth, most people are so afraid that they stay at home watching television all of the time. These people only know what television shows them.