Well Dad, you're in it now. Has to be a Gen 4 19. Simple, reliable, easy, safe. Yes, safe. It has more safety's than every revolver ever made. Fun at the range and fits in her purse. Next...
At a birthday or maybe Xmas find her a 32C. Used Gen 3 in good shape. Same basic pistol as a 19 but with a little more rock and roll. She'll like it, betcha! Keep it in the car.
When she gets through a major milestone at Med school it's time for a little "tradition". You get your safety and she gets the most beautiful pistol in the world. Find her a Mark III Browning Hi Power. Again, used but in really good shape. Blueing perfect. She will be speechless and so will the local buds.
I wish you luck and a big bucket of smiles for you both.
Let the record show that my g3 G19 does NOT fit well in my purse.