no, you have a cellphone when you need to communicate to people. if you are a social reject, you do not need a phone. similarly, if you prefer talking to people face to face you don't need a cellphone either.
i'm not going to answer all of your questions, but i'll just list some ideas where you can write your own argument and rebuttals.
- parents should hold the responsibility to teach manners - or else what are they supposed to do?
- some teachers can be rude
- family has more influence on the child...