I agree that people should sometimes do things that they don't enjoy doing. This is a basic part of being an adult. Plus, some things that aren't "fun" are still good for us in the long run.
Take personal tasks. Who enjoys going to the dentist? Very few people enjoy having their annual check-up with the doctor. Not a lot of people enjoy changing the oil in their car or mowing their lawns. These are all things we do because we have to, not because we want to. We realize that taking care of our physical health is the sensible thing to do. We know that if we don't change the oil in our cars, our cars won't run. We understand that grass grows and if we don't mow it, our lawns will look like tropical forests.
Professional tasks are another part of the same equation. No one likes to be stuck with a boring assignment or to be told we have to work with someone no one else gets along with. Sometimes we have to put up with unfair criticism from a supervisor or resentment from those we supervise. If we're in management, we may have had the unpleasant task of having to fire someone. None of these are fun things. Unfortunately, they're all part of earning a living, something the majority of adults have to do.
On the other hand, sometimes doing something we don't enjoy doing can lead to enjoyment. Simply by trying it again, we may decide we like doing it. For instance, we may have convinced ourselves we hate to dance. We agree to go to a club only to please someone else. Yet, for some reason, this time we enjoy dancing. We've been cheating ourselves of enjoyment without even knowing it. The same can be true of trying new foods or going to a new type of museum.
Doing what we don't enjoy doesn't always have to be a bother, does it? It's just part of life.
When it comes to the topic should people sometimes do things that they do not enjoy doing, optimistic and pessimistic people have different attitudes toward this topic. For me, a person who likes changes a little, I would prefer to do some different things sometimes even if I do not like them. There are many reasons why I should sometimes do things they do not enjoy doing.
The first reason is that I could get more experiences from the things I am doing, no matter I enjoy it or not. There are pros and cons for every experience. What I learned from doing something I dislike is to conquer the similar situation and take the advantage of good changes I may encounter again in the future. In addition, I will see such a disagreeable thing as diversity to my routine life.
Secondly, many things which I do not enjoying doing can actually do well to me. For example, I do not like to sweat because it makes me uncomfortable with those sticky clothes and bad smell. But for exercise, the activity will cause me to sweat, surely keep me in good shape and benefit my health. Besides, I feel happy whenever I see my figure become more slender. Moreover, overcoming displeased things gives me a sense of achievement.
All in all, it is not bad for me to do something I do not enjoy doing. Therefore, I agree that people should sometimes do things that they do not enjoy doing.