Everyone knows the rules -- whether they be road rules, HR rules, playground rules, sports rules, etc. The world has rules and for the most part, we abide by them (with the exception of the millions of people in jail and the hooligans that cause havoc in the streets.
Regardless, there are rules. Like them or not.
For kids, the rules are easier to follow. Yet, to them, they are big rules. Little things like being quiet while the teacher talks; staying in line as you walk to the cafeteria; or, helping clean up after activity time.
These are Kayla's rules she has at school: