Doesn’t surprise me at all. I am sure it has been analyzed to death, but I always assumed it was due to most people getting their dopamine hits from the “inner world” of the internet instead of the “outer world” we all live in. I spent years playing video games and masterbating to pornhub videos. It’s not that I didn’t want to find a girlfriend. I just never left the house or had the drive to do so until I stopped focusing so much on the inner world.