I would say no.
My daughter is right-handed but left eye-dominant, in other words she has to aim with het left eye. I then taught her to shoot left-handed and she's really accurate with a rifle.
It's better to start teaching them young and lay the correct fondament, if they struggle at a older stage its easy to loose their love for the sport.
BTW, my daughter also started shooting at 5, she is now 7 and still love shooting her dad's rifles.