My comment was saying that the people who _don't_ should learn how to do so. It's a skill like any others, and what you're proposing contributes to people being lonely. Instead of making connections with people around them, who they didn't choose, they hold out for some platonic ideal of a friend who they have the right amount of things in common with.

You see it in this comment section where you've got people shooting down every idea that people put out there. Oh, I can't go to the gym, I don't like working out. Oh, I don't want to join clubs because they don't have my interests. But I also don't want to be lonely, so I guess I'm just stuck.

It's always possible to find people. If someone is shooting down every idea for doing so, they may have issues with motivation, or being defeatist, or any number of things. Those need solving.

That doesn't mean finding perfection. It does mean actively doing something to find people you enjoy spending time with.

Life gets immensely happier when you spend time primarily with people you find fulfilling. You can absolutely make a conversation work with anyone, it's absolutely a skill, and it can be useful. But you will in your life have a certain amount of time and energy to interact with people. Spend it well.