If Hawai'i loosens the requirements for CCWs, then it is welcoming people to get their own firearms. Police officers would have to worry about every confrontation possibly turning to gunfire. They would face an armed public, which would probably feel the power to enforce laws for themselves. Maybe, but people are people, and every day they get mad, nervous, jealous and confused. Combine any of these emotions in excess with a lethal weapon and you get bad situations where people die.
Traffic is a prime example.
Road rage is experienced by most people on the road, especially during the hours where the speed on the highway tops off at 15 miles an hour. If motorists are armed, their irrational anger at being cut off or tail-ended by another car becomes dangerous. Nevertheless, those things are bound to happen when people have guns. The idea behind gun rights activism follows that if people are armed, they can defend themselves. Or so they speculate.