You are enjoying the beautiful scenery in a quiet place, but suddenly the peace and quiet is interrupted by the noisy sound of a cellphone ! Cellphones are everywhere, and some people don't know what the limits of cellphone use are. For me, it's just a matter of education, good manners, and common sense. If I go to a beautiful place, it is because I want to enjoy nature. I can do it, but without bothering   other people. Nowadays, that's the biggest problem. People disturb other people, first with the ringing of their cellphones and then with their conversations because they usually speak very loudly. Not everybody in a public place should have to listen to private conversations  . Even more annoying, you hear just one part of the conversation. People need to learn how to use cellphones correctly. If there is an emergency  ,cellphones are acceptable, but remember that just a few years ago few people had cellphones and the whole society survived! But again, not everybody wants to listen to other people's private conversations. It's like smoking. _ . Our society has to learn to respect other people. Sometimes when you are talking to someone, that person interrupts the conversation because of a cellphone call, without saying "I'm sorry." That is bad manners. They don't know how to respect other people. It's just common sense! But our society is sometimes so "common senseless!" So, we have to write some rules to prohibit cellphone use in some places. According to the author, what is the biggest problem nowadays?
People are disturbed by those who use cellphones. People can't hear the other part of the conversation. Private conversations are carried out on cellphones. Not everyone uses a cellphone in public places.