The forced landing drill on a PA 28 calls for the door to be unlatched before touchdown.
It seems probable that a passenger could hold this door ajar at touchdown.
Airmanship dictates that the pilot always has a forced landing field and an emergency escape route in mind at all times.
If it's your day for a flip and burn then that's kismet. But it seems a very arguable point that a high wing Cessna will flip before a Cherokee.
Better petition the CAA to allow pilots to carry cyanide pills in case of slow cooking possibility since you aren't be allowed to play the gentleman and carry a handgun.