Last year we changed our door lock from the factory Lippert latch to a keyless one from RVLocks and more. Now we can close the door with a push of your little finger it closes so nice. Friends that camp with still slam our door, but it is not necessary at all.
As an aside, our camper came with slam latches for the compartments which I was not a fan of because way too many people slam their doors in my opinion. That's also why I hate motels. ;)