In most developed and developing countries, the progressive tax rule is in place. They believe that taxes are necessary for keeping a country safe and more organized so that wealthy communities or those with higher salaries are more responsible for helping others by paying more. In other words, they indirectly help their compatriots. For example, public schools are free for all people in society, but the expenses should be paid by the government. Therefore, to improve the education system, more funds are needed for hiring higher-degree teachers and improving facilities. This money is primarily earned through taxes.