So are you uncomfortable, or incompetent?
Not to pick on you, but just illustrating the subtle symantic difference between the two. The concepts are related but are unique.
Apparently she is not competent with the platform (or some aspect of it) or she wouldn't be uncomfortable.
If you possess sufficient skill and knowledge, what are you uncomfortable about?
If you are uncomfortable with a piece of equipment that you have complete competence with, either the equipment is poorly designed (not the case with the 1911) or you are irrational.
My guess is that lack of competence with a platform is more likely.
If it is a question of PREFERENCE, then that is a totally different issue; I prefer a striker-fired pistol to a cocked and locked design but I am not uncomfortable with either.
Competence is the reason I am not uncomfortable.
Either way, your concern seems to be much more one of an individual not liking to be thought of as "incompetent" when it comes to things like guns. I personally do not have this hang-up although I understand that some do. I am incompetent at a number of things so I don't worry about it unless I need that skill in which case I simply go about acquiring the skill rather than concerning myself with how I am perceived.
Michael Brown