No they can't. Followers are just a replacement for those who crave friends in real life. Loner style is the only way to play.
I remember reading a review of Skyrim, in which the reviewer wrote that the first thing he did was approach a village and start murdering the characters. I kind of did a face palm, because my first desire was to start exploring the map. But the article did get me to thinking about how people behave in general. Was the reviewer wanting to explore the morality of the game, to see what the consequences were? Did he just want to see if it was fun and challenging? Did he merely want to experience his own inner dark side? Was there a thrill or an indifference? Or could it be something else, such as what cognitive psychologists call the Uncanny Valley.
http://en.wikipedia.org/wiki/Uncanny_valley
Your response above, caustic as it is, does provide some evidence of that observation. Most especially when you write, "Followers are just a replacement for those who crave friends in real life."
But the thing is, literary theorists would disagree, in that literature and art provide folks with the opportunity to stimulate and exercise their empathy and compassion, which helps progress humanism further away from its bestial origins and more towards enlightenment.
There are folks here who identify with the characters, like one would when watching a movie or reading a book. They can and do develop and emotional attachment to a fictional character. That has nothing to do with their real life, and actually may complement it, if the arguments of literary theorists have any validity.
Don't mean to digress. Human nature interests me, especially the variations on the spectrum. Carry on.