Выбрать популярную проблему и написать по ней эссе с вступлением, тремя решениями и выводом. 150-170 слов

In my country you are supposed to let people exit from the elevator or trains first.It is thought to be polite. It is considered impolite to prevent people to go out. 
You should not cut someone off. It is thought to be impolite. You should wait till they finish what they are saying.You should chew with your mouth closed. It is thought to be polite. And you should not start talking with a mouthful of food.
In my country it is considered polite to treat people nicely even if you don't have to.
Don't talk loudly in public places. It is thought to be impolite.

1) You do not have to worry. Everything will be good.2) We did not have to intervene: he coped with the task.3) There is no need to explain anything.4) You should not take such a trifle to heart.5) The conversation did not last long, it was clear enough, and they do not have to go into too much detail.6) You do not have to answer that question, if you do not want.7) You do not have to come to you. Can you send someone.8) We did not have to translate the text in full, you're wasting time.9) You do not have to hurry, the lecture had already begun, and we are already late.10) We have come to no avail, we are interested in the question was not raised.