I do not like most youth guns, they seem to have too much recoil, and I hate pumps for starters. I started my daughter, first learning the nomenclature of the shotgun, and lots of dry drills. Than she started to shoot my Model 1100 Remington, 20 24 inch barrel, she LOVED that little gun, and could not wait to shoot it..... the stock fit her well
whatever you get, it needs to fit her
I have 3 but can never seem to get them all in the picture together. Anyway, mine starting hunting at this age...
...and here they are now:
Two of them shoot auto's, one is an 1100 20, and the other an 11-48, and since 11-48's have a recoiling barrel, they kick a bit more, so we went with a 28ga.
My youngest is a true Daddy's girl and oddly, she outgrew both of her sister's stature wise.
She only wanted to shoot what I shoot, and that's an 870. I love them. So I scaled one down in 28ga for her.
Then I personalized their shotguns for them, which they really liked!