She should carry ( if she wants to carry ) what fits her hands the best - and what she shoots the best. That goes for the type of platform ..and the caliber combined. Ex: if she shoots a 1911 the best in 9mm - then get her a 1911 in 9mm to carry - and make sure its a gun she likes.
If its a 9mm - its fine .../ its way more about shot placement than it is about caliber.
There is nothing wrong with a .45 acp / or a .40S&W or a 9mm - especially if you use some "defensive ammo" in it ...like a 147gr JHP Hydra Shok in a 9mm ....it becomes a very good defensive weapon in a 9mm ....( and so is Hydra Shok ammo in .40 or .45 acp ...or .38 spl ...) ...or whatever...
Making her shoot something she doesn't like ...is going back to the dark ages...( and I'm 61 yrs old ) .../ I know old school / but its foolish.
If its a 9mm - its fine .../ its way more about shot placement than it is about caliber.
There is nothing wrong with a .45 acp / or a .40S&W or a 9mm - especially if you use some "defensive ammo" in it ...like a 147gr JHP Hydra Shok in a 9mm ....it becomes a very good defensive weapon in a 9mm ....( and so is Hydra Shok ammo in .40 or .45 acp ...or .38 spl ...) ...or whatever...
Making her shoot something she doesn't like ...is going back to the dark ages...( and I'm 61 yrs old ) .../ I know old school / but its foolish.