I learned to shoot very early. Dad didn't have many small calibers, so it was just .22 and .243. I never had any problems. When I was about 9 or 10, I shot those really well so he decided it was time to try the 30-30. This was back in the days before lead sleds and all. The stock was too long for me, I couldn't see through the scope so I didn't have it shouldered correctly, it slipped under my armpit at the recoil and the scope hit me right on the bridge of the nose. I was bawling, he was horrified....it went down in family history. I wouldn't shoot a rifle for quite a while after that. When I did, I went back to the .243 and did just fine. I absolutely loved shooting that gun, and I still do whenever we get a chance to take it out. Looking back, I think he was right in that the recoil itself wouldn't have bothered me. Turns out that wasn't really what he should have been most worried about though.
I obviously got over it and have no recoil sensitivities now so it worked out ok in the end. But take it slow, and be sure she's really ready to shoot whatever it is and that it fits or is set up in a way that she can handle it.