I agree with Rocketman. 10 years old seems a bit small to start a kid out with a gun unless they are pretty good size. And just because you get a smaller gauged gun, doesn't mean it will be any easier to shoot. You end up compensating shot for recoil and the child will either not be able to hit anything or they will get the heck kicked out of them. I would have started off with a 20 gauge auto or a gun with some type of recoil system that eases recoil. Mainly because the shells are cheaper to buy, easier to find and the reloadable hulls are easier to pick up at the range. So, I would say to start her out slow and have her understand that it will probably be some time before she becomes sufficient. And don't let her become discouraged if she doesn't do well right away. And good luck. Your are a good man to help a child start out the right way.