Why would 4year old boy want to kill pet?

A 4-year-old boy may express a desire to harm a pet due to a lack of understanding about the consequences of his actions, curiOSity, or frustration. At this age, children often explore their emotions and boundaries, sometimes imitating behaviors they've seen or acting out in response to stress or anger. It's important for caregivers to guide them in expressing their feelings appropriately and to teach empathy towards animals. Supervision and education about kindness and responsibility can help redirect such impulses.