Yeah, great penetration, but with teeny-tiny holes. Better than a sharp stick, but a 9mm, 40 or 45 carbine would make bigger holes.
With centerfire reliability.
And it would still be easy to handle. It's not a 22, but even an 8 year old could still handle it easily.
Obviously, if she doesn't want to do it, it doesn't matter. But there's no reason she can't do it.