That error is at the feet of his instructor.
No, it was the pilot's own personal error.
Or you could blame his examiner, or the CAA, or his friend on the day in the other aircraft, the person who didn't physically prevent him from departing by blocking him in with a vehicle, society in general, or even the mud that partly blocked his starboard wheel from rotating.
Pilots with a normal attitude to learning, with the will to listen and learn from others and a sense of what they are actually capable of don't make a series of glaringly obvious basic mistakes such as this.
I've met quite a few pilots who said that and or behaved as if they were better than everyone else. Quite a few are deceased.