When I was in high school, because I was close to home, I had time to call my parents, and I arrived at school in less than half an hour, which still helped me solve it. But after I go to college, I have to take this responsibility on my own, because the university is far from home, and even the high-speed train takes about 4 hours, so I have to do everything myself. I am sick, or I am in a bad mood, or I am trapped outside and can't go back to school. We can only find a way to solve it ourselves, because my parents can pick me up without calling at home. Thousands of miles away, I really can't be strong. If you are not strong, who will carry it for you? Parents are not around, and friends are sometimes really not so reliable. It is unreliable for you to rely entirely on your friends.