Except it's not really though, is it? He admits it was his first time, he probably got caught up in the excitement and was most likely nervous. The peace of mind from a trainer is expensive and he was rightfully expecting to be able to rely on it and just enjoy the experience he probably paid a fair amount for. Could he have checked it? Absolutely, but let's not go blaming him for it.
The instructor failed big time and is very lucky he's not facing manslaughter charges.
Ah you trying to say, you ain't one tiny bit curious on how you stay attached to the flying machine? Eh Eh? Especially when your life is on the line, let's be honest here, It's just a rope keeping me staying alive and I be damn sure that I would WANT TO KNOW, that rope is attached to me and that machine before taking off.
People should take self responsibility for themselves.
Yes, the instructor failed and is responsible for this, but in my view, you are just as responsible for your life as he is.