Governments enforce some promises but do not enforce most promises made between people. Do you think it is important for governments to enforce certain promises?

Governments enforce some promises but do not enforce most promises made between people. Do you think it is important for governments to enforce certain promises? What kinds of promises should be enforced?
• The uploaded textbook, Chapter Six of The Legal and Ethical Environment of Business (textbook: Lau and Johnson), can pave the ground for legal terminology and a general understanding of the subject. Please feel free to use it as one of the credible sources, and for additional information, please do further research.