I could see that. Haley always had been worried about her powers. The fact that she shapeshifted into a version of herself with fangs and claws probably didn’t help.
It wouldn’t be like discovering you could fly. It wasn’t a cool power. Fangs and claws just said monster.
The combination of that with strength and poison filled dewclaws that were still there even when she hadn’t shifted couldn’t have made her childhood easy.
Actually, I knew it hadn’t been.