I think it's a multi-faceted opinion. Although the PA market is great here, we still live in an area where there is a distrust for anyone without an MD behind their name. Many people here don't know what DO means, let alone PA-C or APRN. A lot of people think she must be some glorified medical assistant or nurse.
She works in a small clinic with an MD and another PA. The standard practice is for the physician to see all new patients and select complicated cases, whereas the PAs see the follow-ups and standard check-ups. Almost daily she gets a follow-up patient who will say "You're nice and all and I'm sure you're really good, but I would prefer to see the Dr from now on. I'm sure you understand...he's the expert on this and I would just be more comfortable with him." Happens to her PA colleague as well.
On top of it all, PA school was very intense. I don't think she would go through it again.