writes:

A real airplane doesn't have a mouse to click.

So? A person would have to be quite impaired cognitively in order to be unable
to adapt between a mouse click and the turn of a knob or the flip of a switch.

So it isn't realistic.

Realism isn't a binary value. There are many degrees of realism. Every
simulation is realistic to some degree. No simulation is completely realistic
or unrealistic. The limits of realism can be a good thing or a bad thing,
depending on which aspects of realism are affected and the objectives of the
simulation.

If I turn my head full left in a real airplane I have a left hand view
directly in front of my face.

TrackIR moves the image on the monitor in front of you. To simulate reality,
TrackIR would have to physically move the monitor to my left to track my
head turning. TrackIR does not do that.

So?

The above has nothting to do with field of view and field of view is very
important to VFR flying, especially in operations on and around an airport.

Not everyone chooses to fly VFR.

No, because seeing things to your side and to your side and below is a
big pain in the ass pushing buttons to change the view.

I don't find it so.

Not in MFSF and not anything else unless you have a 360 degree screen.

The twist axis on my control stick allows me to look directly behind the
aircraft if I feel so inclined. I only use this capability on rare occasions
because it's not very realistic.

A lot of landmarks in real flying will be beside you.

If they are beside me, I look to the side.

I have a real airplane and already know how to fly.

MSFS is nothing like flying my airplane.

If you only use MSFS to buzz the Las Vegas strip, I can understand why you
might feel that way. But some people are serious about simulation.