I'm with your dad on this, although I have flown in the left seat of a Gazelle, many moons ago. It was my first and last flight in a chopper. Too many moving parts and every control input requires to be countered by another. Heaven knows how they manage to fly.
I don't know anyone killed in an air accident, plane or helicopter. I do know a few groundstaff that were killed by aircraft though, walking into props or being sucked into the intake. Horrible mess.
Military pilots at war excluded...