A really enjoyable read, and I agree, even if there are omissions to the rule, most game's characters with friends tend to feel more humane, even in futuristic pace with aliens, cyborgs and more, having allies and friendships make the game more real. Let's accept it, it's easy to believe a character like Gordon Freeman was part of a bigger group in half life 2, than going alone like the first one. Having old friends, new friends, know people, and even people who suddenly recognize you and your merits feels good. I heard about pokemon but it would be better if, i.e., after winning the league people recognized you and wanted a rematch, or you heard characters saying things like, "I battled against him when he just started" or "he helped me with ______" I don't know, there is a lot of potential in friendships in games, it can be hard, but implementing them gives the game a lot more deep in my eyes.
Of course all of this IMO.