Tough questions from kids - Why do we pray for our enemies?

The main reason to pray for our enemies is because God tells us to. In fact, He tells us to love our enemies. Praying for our enemies and loving them is God's way.  Another reason is that all people, especially bad people, need prayer.  There is no better way to change them.  If we want bad people to stop being bad, we need to ask God to do it.