I think that it is better to work with group of people than independently because it would be faster, easier, and you would be able improve and learn about what you are doing. Also, I think it is better be with people, have conversations, share what you know and talk about it with them than be selfish.
Firstly, I would like to say that when you are working on something, having more people working will save time. So, when you are working with a group of people it is faster than when you are working alone. For example, if you want to build a house, what would be faster to build it alone or with 5 more peoples? Of course with 5 more people.
Also, working on something alone would be harder than work with a group of people. For example, when someone is working on a school project, I think that it is easier to work with a group of people because you can talk to each other and find out the best way to do this project. You can help each other too.
Lastly, you have the opportunity to improve what you are doing. You will be able to talk about the work and learn from each other. So, you will know more options to choose how to do the work. You will improve yourself.
In conclusion, although I know that sometimes it is hard to work with other people, I think that it is the best way to work and be successful.