How to persuade parents to let them continue their studies?

Three breakthroughs, first, let his parents know that he doesn't like to open online stores, even if he doesn't like it, he won't succeed. Second, deny this project. In terms of online stores, not everyone is adapted to opening outlets and let parents give up opening online stores. Third, tell his parents that the online shop is not profitable or promising. Now he is still young and has the ability to learn. Learn more while he is young. Money can be earned for a lifetime, but it's hard to get it back after studying. I think his parents are selfish and just want to use their children to satisfy their wishes. You can ask your friend to teach his parents selfishness and make them understand themselves. In fact, the most important thing is that your friend must have quarreled with his parents, so it is impossible to back down. If it doesn't make sense, then go out to live and study while working, but this is only a means. I don't think his parents will have the heart to make their children work so hard. The most important thing is to see if your friends have the perseverance to learn. Finally, I wish you success. Give me extra points for 400 words on my mobile phone.