I’m guessing if I had a mind to give one of my grand daughters a shotgun, it would be some sort of 410.
I’d prefer for them to cut their teeth on a 6” revolver with a 22 starting out ending with a .30 or better caliber myself.
My first shotgun was a single-shot .410 when I was nine. Within two years I was up to a double-barrel 12 gauge.