They want routine and rules.
Kindergarteners want to know the rules, and they usually follow them. If the rules change even slightly, they can be upset by the shift in their routine. Sometimes they have a strong desire to please adults and they complain when others break rules.
What you should do: Ensure your home has structure. Explain the rules and make sure your child understands them before expecting her to fall in line. Encourage simple routines like setting the dinner table and making the bed. When your child follows rules, tell her you appreciate it. When she doesn’t, calmly reinforce rules. Say, “You must clean your room,” for example.