New love of rules: Rules keep life better organised and more efficient for all of us. They also let children know what's acceptable and what's not. You already knew that - but did you know that four year olds adore rules? They love the confidence they get from knowing the ropes - that's why it's best to keep discipline consistent. In fact, their respect for rules can sometimes border on the obsessive - preschoolers can be stricter than their parents about making exceptions!