Cinderella

I was watching Cinderella with my daughter and she asks “mama, how come the shoe only fit Cinderella. Does no one in the whole kingdom not have the same foot size as her?” And I did not know what to tell her because she honestly has a point 😅 any ideas of why it only fit her 🤣 I just told her the fairy god mother only made it to fit her only her and it shrunk for other woman 😅