Love gone wrong can lead to it too. In a tragic love story, a man who was spurned by a powerful witch or enchantress might be turned into a statue out of her anger or heartbreak. His immobility would be a representation of the end of their relationship and his fate sealed in a cold, unchanging form.
Betrayal could also be a cause. In some fictional tales, if a man betrayed his comrades or a powerful entity, that entity might use magic to turn him into a statue. It's a way of imprisoning him in a form that can't interact with the world anymore. For example, if a knight betrayed his king and made a pact with the enemy, the king's wizard could turn him into a statue.
One reason could be a curse. Maybe she offended a powerful witch or magician, and as a punishment, she was turned into a mannequin. Another reason might be a deal with the devil - like figure. She made a Faustian bargain and the price was her transformation.
Maybe it's a case of urban legend or a tall tale that got out of hand. People love to tell extraordinary stories, and if there was someone with an unusual appearance due to a medical condition, it could have been embellished over time into this idea of a man turning into a walrus. Also, lack of medical knowledge in the past might have contributed to such wild interpretations.
One possible reason could be a magical or supernatural curse. Maybe he offended a powerful witch or wizard who cast a spell on him. Another reason could be some sort of scientific experiment gone wrong. For example, if he was part of a secret experiment involving hormones or genetic manipulation, and things didn't go as planned.
Perhaps he was a thief trying to steal a valuable artifact from the museum. There was a security system in place that not only stopped him but also transformed him into a statue as a deterrent to other potential thieves. Another theory could be that he was a time traveler who got stuck in the wrong era in the museum. His body couldn't adapt to the time difference, and as a result, he was turned into a statue. It could also be that there was a hidden portal in the museum leading to another dimension, and he accidentally stepped into it. The energy from the portal interacted with his body and turned him into a statue.
It could be a result of a scientific experiment gone wrong. In the Star Fox universe, if there are advanced scientific experiments happening, something could have malfunctioned. Maybe a new form of energy or technology was being tested, and Krystal was in the wrong place at the wrong time. The energy could have had an unexpected reaction with her unique physiology, turning her into a stone - like state.
One possible reason could be a magical curse. In many fictional tales, a spell might be cast on the husband, perhaps by an angry witch or wizard, which changes his gender. For example, in some fantasy stories, if the husband unknowingly offends a magical being while trespassing in a forbidden forest, this could be the result.
One famous example is the story of Narcissus in Greek mythology. He was so in love with his own reflection that he couldn't leave it. Eventually, he turned into a flower, which could be considered a form of becoming a 'fixed' or statue - like entity. Another could be from some local folktales where a man who was cursed for his pride or disobedience to the gods was turned into a stone statue as a form of punishment.
In some cases, it could be due to new influences in her life. For example, if she enters a new social circle where there are bad examples or peer pressure. Maybe she starts hanging out with people who have loose morals and gets influenced by them. Also, personal insecurities can play a role. If she has low self - esteem, she might use sexual attention from others as a way to feel better about herself.
One possible reason could be a magic spell. Maybe a wizard or a witch cast a spell on the boy for some reason, like revenge or as part of a test.
Well, in these out - there stories, it could be that the government is trying to create a new type of citizen. They might believe that by turning someone into a girl, they can introduce different perspectives and abilities into society. But this is really just wild speculation as no real - world government would do such a thing without major ethical violations.