I disagree here. You're dangerous until you know you know what you're doing. Having a bad scare might make you not repeat that situation, but you're still just as dumb after it as you were before (well, at least that's been true for me).
https://www.amazon.com/Killing-Zone-Second-How-Pilots/dp/007...
This is very different. If an instructor is present the danger is clearly lower. The book deals with the phase where pilots first fly alone without external help.