1) I think one of the main problems is the obsession with the phone. Teenagers live in it.
2. Parents can help young people with their problems. And if the help of the parents did not help them, then the experts go to help.
3. Yes, it is difficult. Because you encounter problems along the way.
Пока только это, но сейчас и на другие отвечу. Не знаю правильно или нет.