I agree with the statement that people should sometimes do things they do not enjoy doing. Everyone knows the feeling when something has to be accomplished but cannot be really bothered to do it, because it is a pain. But now or later, it has to be done. Everyone is a little spoiled in this way, because we only want to do things that we like.
If everyone just does what they like, I believe that this will ruin the character of people. Only doing things that I like would make me really spoiled. Most people will react negative to things they do not want to do, this reflects on their character. If they only do things they want to do, and a person comes a long telling them to do something else, they do not want to do, the certain person will react negatively to this other person.
Everyone has to do something they do not enjoy, otherwise it will change the person. Everyone has seen some kind of children in movies, fat and spoiled kids. They only do what they want, and they react to things they do not want to do in a bad way. Screaming at the parents, destroying things and much more. I believe that if everyone only does things that they like to do, everyone will end up in the same way. It is good to do something that is not enjoyable, which will keep up the character but after it is done, everyone has a good feeling.
joenumber1 