writes:

V66 is no more safe or efficient than any other legal route.

V66, like all Victor airways, place limits on obstacles, whereas off-airway
navigation does not. If you follow an airway at or above the prescribed
minimum altitudes, you won't hit anything. When you are off-airway, terrain
avoidance is your problem.

Victor airways have no "authority" of any kind. Anyone is free to use them
or not as they desire.

That's not at all what I meant. Some people refuse to follow rules or even
suggestions because they perceive it as being told what to do, and they don't
want to be told what to do because it hurts their (typically immature) egos.
It doesn't matter whether the advice or rules make sense or not. People like
this tend to get themselves into trouble, including when they fly airplanes.

Nonsense, you are sitting in front of a computer playing a game.

No, I played chess later. Landed safely in KSAN, parked the Citation over by
Landmark.