An example is that every mail must have a stamp and a roll of stamps costs about ten dollars. Now, sending mail after mail is not something anyone would want to do unless they are willing to pay the expense of stamps. You may also have to pay if the person you send the mail to receives it but you haven't put enough stamps on it - you may have to pay the rest of the fee for not putting the correct number on the mail you're trying to send. Mail is considered obsolete these days. Very rarely does anyone write a letter and see the number of people who don't know how to write the envelope when we need to talk to someone. It's much easier for our generation to go around texting people instead of writing letters. Of course, this isn't practical for people who live close to each other, but for pen pals it could be a useful tool. Unfortunately, technology has ruined and taken over our lives. We have become a lazy generation because we don't take the time to use both types of communication