Final answer:
Moral laws and precepts exist to ensure a functioning society and promote harmony. Humans should care about being moral to foster trust, cooperation, and personal integrity. These rules serve to maintain order, promote social cohesion, and foster ethical responsibility.
Step-by-step explanation:
Moral laws and precepts exist because they are necessary for the functioning of a civilized society. These rules are needed to ensure that people can live among each other, make plans, trust others, and know what to expect from others. Without moral rules, there would be chaos and social life would not be possible.
Humans should care about being moral because it allows for harmonious coexistence and the development of strong communities. Moral rules help create a sense of trust and cooperation among individuals and promote fairness and justice. Additionally, many people have a personal sense of morality and believe in doing the right thing.
Overall, moral laws and precepts serve the purpose of maintaining order, promoting social cohesion, and fostering a sense of ethical responsibility and accountability.