Rules and laws exist to help people live together safely and fairly. Rules are often set within smaller groups, like a classroom or a household, while laws are created by governments and apply to everyone within a city, region, or country.
Laws help protect people's rights and safety, from traffic laws that prevent accidents to laws that protect people from unfair treatment. Without agreed-upon laws, it would be much harder for large groups of people to live and work together peacefully.
Laws aren't fixed forever — they can be created, changed, or removed over time as societies grow and their needs change. In many countries, elected representatives propose and vote on new laws, and citizens can often make their voices heard about laws they support or want to see changed.