Living in an island is an alluring dream and all. But being human, companions are needed to spent our life more beautiful. Moreover, it's the recognition of those that had been there in difficult times facilitate in the nurturing of a positive character.

I saw somewhere: "Everyone has a friend during each stage of life. But only the lucky ones have the same friend in all stages of life."

On the other hand, there are some people that acts to be trustworthy but in reality are the backstabbing ones. So, this basic identification is also required to be accomplished.

Thirdly, if i'm young it doesn't mean that my acquaintance would be of same age. After all uncle, pal, confidant, buddy have the same meaning, a person that we have such a confidence and mutual affection, to discuss our problems without any hesitation. Same goes among those who can spent money or not.

Moreover, there might be the presence of some healthy and positive criticism among peers. And the realization of its necessity among the closer group also facilitates the process.
To justify it, i would like to say:
"The aim of an argument or discussion should not be victory, but progress."