Crash an aircraft because of an open oil cover??? Pilots have to deal with open doors, electrical fires, undercarriage problems etc etc etc.
I'm sure I remember reading of a pilot who misdiagnosed an electical fire as an engine fire, turned off the engine instead of the master switch, then crashed and died.
Where in the PPL syllabus is the student taught about 'explaining that the risks in the flight for your passengers are way beyond what they would otherwise find acceptable'?
Dunno where it is in the syllabus but I certainly managed to learn it. I don't phrase the warning
quite like that, but I do point out that standards for amateur and professional pilots are not the same.