When it comes right down to it, an egotistical beginner is inevitably bone idle.
Watching video clips and reading books involves virtually no effort.
Talking is easy.
Practice is hard work.
Hours of daily solo training and potentially rough partner work requires effort not excuses.
Lazy people want everything doing for them.
They instinctively look for a short-cut.
Instead of doing the actual work, they do nothing and then complain when a reward is not forthcoming.
This shows weak character.