Crazy Story from A Friend (but maybe it's only crazy because we're from the US)

I have a friend who told me a crazy story. Just like me, she’s in the 4th grade. In the morning and at night, she doesn’t have parents. Her parents leave at 5 o’clock in the morning. She has to wake up by herself with her alarm. She also has one little sister in 1st grade. In the morning, she cooks eggs for her sister and her, and she toasts bread. One day I saw her little sister with a really nice French braid-bun. My friend says that she helps her sister fix her hair in the morning. Then she walks her sister and her to school by herself. After school is over, she then picks up her sister and they walk home together alone. They then do their homework by themselves when they get home. For dinner, my friend cooks noodles and makes a salad. When the mom comes home at 8 o’clock, she will cook the more complicated part of dinner (such as meat). Or if the mom tells her that she will be home late (say at 10:00), then her sister and her will just eat Cup O’Noodles. Every night, they have to go to bed exactly at 8:30. If they are one minute late, they get hit on the butt one time. If they are five minutes late, they get hit on the butt five times, etc. One day she came to school and said that her butt hurt because her mom hit her on the butt 10 times because she was 10 minutes late to going to bed, because she was studying for her test. That day she came to school angry, because she had to cook dinner, help her sister get changed and get ready for bed, and she had to study for finals. I feel like she is a really good sister, and really mature.