Why do all the princesses in comics have to go through witch persecution?

A princess got lost in the forest. She saw a castle in front of her. The door was opened by an old witch. The princess asked to stay for one night. The witch said that I only took in the real princess, and the girl said that she was the real princess. So the witch let her in, made her a 12 velvet mattress and put a pea under it. The next day, the princess complained about what was under the bed. I am sad. The witch said happily, you are a real princess. The witch's son often says affectionately to the witch: She is really a rare real princess.

Story 2: Brothers

I once had a younger brother. Although the memory of the past is vague, what impressed me most is the happy memory when I shared the tangerine my father gave me with my brother.

It just didn't last long. My brother died a few months after he was born, but he still lives in the heart of every family.

Story 3: Black Boy's Brother

My brother suddenly went crazy and killed the whole family.

But such a brother was immediately arrested and sentenced to death.

Among them, my sister was lucky enough to survive, and the whole thing lost her memory because of shock.

My sister, who lost her parents and memory and survived like a walking corpse, met a fortune teller one day.

So I started divining my past.

"Why did my brother suddenly go crazy? 」

"No, your brother is quite calm. 」

"Then why did my brother kill the whole family? 」

"No, your brother only killed one person. 」

Suddenly, my sister remembered everything and began to sob.