Console-itis is a word I coined to describe usually young beginners who have no idea where the semi-colon (and sometimes the comma) key is on the keyboard because all they have ever known is a gaming console or an iPad. It takes much longer to bring such a person up to speed for coding. The only people I have had to refuse membership are usually those with console-itis.

How do you avoid it?

Get a keyboard into the hands of every child as soon as possible.