Governments provide what such as schools, sewer systems, roads, and often the means of promoting public health and saftey

Public services

Explanation:

The government formed to maintain laws to keep order for the well being of people. Governments provide public services to benefit all the people in a particular community and live in a society with harmony. The developments made by the local authorities of the government by establishing schools, colleges, health care, transport, sewer systems, roads etc.  

what are the reasons

capitalism is an economic system that works around the concept of wealth creation in the pursuit of economic growth for the nation while mercantilism focuses on wealth accumulation through extraction of wealth which they believe is measured by the amwount of gold bollions that the nation has in its possession.