Why do we have representatives who vote for us on many issues, instead of a system where individual citizens vote on each issue and law proposed?

The Number of Representatives shall not exceed one for every thirty ... U.S. Constitution, Article I, section 2, clause 3 ... After the war, the founders struggled to design a system of government to better represent the inhabitants of the new country ... delegates to the congress, and each state delegation would have one vote.

health care plans in the united states having high costs because they are focusing on providing quality programs for different groups of individuals. the quality of the service is based on money flow received from the members. without this investment, couldn't be possible a constant scientific searching to prevent death and illness caused because of low levels of health investigation. currently, the complaints are not about the highest cost, but about the coverage and benefits to access the necessary health services required by the members.  

besides, if a global health system is established the quality levels will fall down because of the standardized of the health. the access to care will increase but the quality will be low because it depends on the money invested.

imma say false because i dont know anything about this.