I had my 95 Z28 from 2000 to 2009 & my wife from 2001 to present... she drove the Z once... to move it from one side of the street to the other for street cleaning.
She never asked to drive that one & she has not showed any interest in driving my 2010 (both automatics) other than once saying she should trade her Saturn in so we can have matching his & hers 2010 camaros.
She will never drive my beater truck either because that is manual & she refuses to learn a manual transmission.
I agree with the person who said to rent one to teach her. that way she won't do anything to yours or cause emotions to flare.
Or you can just buy her one of her own... which you may end up doing anyway if you let her drive yours.