i do not know what his profession is - but he feels it is what normal people do and i could not do it...
fact is - there are of course some jobs i could not do - but that is not EVERY job.
i have actually found in my life success in pretty much anything i have endeavored. obviously there are some jobs i could not do - but i am pretty confident i am able to learn it if i tried...and once i learned it i could teach it to others.