I shot left handed. My main shotgun is a Browning Silver 12ga and never had a problem with empties or gases in my face. I bought a SX4 20ga last year and have not had any problems. My left handed son has been shooting his SX3 for several years with no problems. I think your daughter would be fine with most any semiautomatic.
I don’t switch the safety to left hand either. I’ve learned how to reach around as I’m pulling the gun up to shoot. What bothers me is that if the safe is switched around and a righty borrows the gun, they will probably get mixed up and not have the gun on safe. And I can still be safe with a borrowed gun.