Pilots fly VFR and they follow the VFR rules, pilots fly IFR and they follow the IFR rules, pilots fly VFR OTT and they follow the VFR OTT rules. In Europe and Australia, pilots fly EFR and they folllow the EFR rules. This increase SAFETY and UTILITY for GA pilots. Getting the IFR rating is something lots of private pilots should have but is too demanding (approaches at 200 ft!) for weekend pilots. This is why they go EFR.