There is no tech problem.
People sign up for websites all the time.
People get friends to walk them through installing shit all the time. See also discord, telegram, even whatapp groups.
What there is...
Is a natural social consequence of people having created a social barrier.
By making it seem like there is a "wrong" button to click.
A "wrong" server to join.
A "hard" choice with too little information.
A potential for socially costly errors.
Instead of a playground... make accounts like trying on clothes, explore servers like visiting a local cafe. Play.
There are no lasting mistakes. No wrong buttons. No game over. Just play.
And quit making people feel like the buttons aren't safe to click.