People could lie to get money from people who feel bad about the thing they lied about.

Technology has made it easier to contact teachers. It has also made it easier to turn in homework when you are not in class. You can do homework and assignments on the internet without having to waste paper. If you mess up on a paper you can clear it and start a new one. On paper you'll be waisting a whole piece of paper.

Yes, because some students parents want them to figure stuff out by themselves. Having classes will help student learn skills without having to ask their parents. They can join classes that they are interested in learning those skills.