Rewrite the preamble of america in your own words

We as citizens of the United States want to establish the Constitution of the of the United States of America with the purposes of; forming a perfect union within all the states, establishing justice and fairness for everyone, ensuring tranquility, providing defence and welfare for every single person, and lastly, securing liberty and prosperity for the entire nation.

the answer to your question is a because laws act as guidelines as to what is accepted in society. without it there would be conflicts between social groups and communities. it serves as a norm of conduct for citizens.