Yes, one of the most important things that children learn in kindergarden is about what kinds of behaviors are appropriate in school, and what the rules are. You sit down and stop talking when the teacher gives the signal, you sit in a circle when it's time, you eat lunch with the other children and don't throw your food at them, you come in from recess when you hear the whistle...getting along in society is all about learning the rules. For a 5 year old, their world is very black and white, they are not mature enough to be able to judge situaltionally appropriate behavior, so you have to teach them in black and white, these are the rules. Then, when they get older, you can teach them how to figure out appropriate behavior without being explicitly told. But you can't start with anarchy in children and expect them to be able to become LESS chaotic later. What is the first thing you teach your child when they are old enough to walk? NO, don't touch the stove! Then when they are older, you can teach them to use the stove safely. But not when they are 9 months or a year and walking around!