Not quite sure why so much of the world has a problem with the concept that an altimeter reads zero when you land (using QFE) it's not quaint just because you don't like it
They don't: they have a problem with the fact that a) sometimes you won't be able to set QFE if the airfield elevation is too high, thereby requiring a location specific change in SOPs, which is generally considered a bad practice, and b) it's one more altimeter setting to make, with one more potential for error. CFIT being the biggest cause of accidents, tends to focus the attention on limiting altimetry errors.
An instrument approach is just to a number, it doesn't matter what datum you are using. The actual landing is done visually, so it doesn't matter what the altimeter says as you land (in a helicopter it will read negatively, while IGE, anyway, until you lower the collective after touchdown due to Pressure Error
)
Sorry for thread creep
