Comment by bitexploder

A genuine relationship is not transactional. I never expect anything out of a friend, or anyone really. I will simply give them my time, advice, or help because I choose to with zero motivation beyond it making me happy to know I could help someone in some way. I have limits, of course, but I never expect anything in return. It is as simple as that. Some of the time I ask friends for help or they offer it. I don't expect it or do anything in particular to encourage things out of them. A good friendship revolves around the common ground in that space. You like working on cars. You like talking about it and spending time on it. They like the same things. So you spend time on that thing together for no particular reason other than it being more interesting to do with another person.

We live in industrialized society, it is highly dependent on a vast ecosystem of other humans doing specialized jobs. To have a genuine interest you just decide to have one. Why do people choose the hobbies they do. Why this software project over that one. Why do some people like this car or that other car. What motivates people. If you ask people will almost universally be happy to tell you about things they care about. You don't need any particular reason. The fact that you are on HN indicates you at least nominally are interested in others.

I think some rare people genuinely are just happier off in a cabin in the woods, mostly independent of other humans, but we are generally not evolved that way. We simply have a vast amount of chemical and mental machinery dedicated to experiencing life as a social construct and system. Also, having friends to avoid loneliness is that exact machinery we evolved. It isn't required in any logical sense, but in a very real physical sense our bodies and minds reward us for socializing.