Rule 2. Every animal species has the right to defend themselves against there fellow animal species who violate rule 1. They don't need to call authorities. Except humans. They have a man made government ruling over them.
Many animals band together to protect themselves. For example wolves travel in packs, following the lead of the alpha male. Stronger members of the pack defend their weaker members (puppies and such) from predators.
This is similar to people banding together for common defense. People are social. The strong defend the weak. Police and soldiers defend the group from predators. The group feeds and equips the police and soldiers defending them.
Yes, many muscle men youngsters are strong enough to protect themselves from predators, but many people prefer to hire police and soldiers to protect them. Its not realistic to expect elderly persons to protect themselves from from a gang of strong youngsters. Its not reasonable to expect a thin female to defend herself from a 6'5" 250 pound football player. Fear of punishment helps keep some (not all) predators in check. The elderly is person safer than they otherwise would be.
For he is God’s minister to you for good. But if you do evil, be afraid; for he does not bear the sword in vain; for he is God’s minister, an avenger to execute wrath on him who practices evil. Romans 13:4 NKJV