My partner has an office job which she finds mentally tiring and difficult at times but they do all arrive to work and have breakfast toast and cereal at their desks for about 30 mins before they start actual work.
A postie who I work with for years left last year for a school caretakers job and could not believe the change in the pace of work. His fellow caretaker pleaded with him to slow down before they got rid of one of them as he was completing both their work allotments on his own.
I see blokes out in the cold working on the roads and that looks hard work. I have also delivered to sweat shop firms and that looks pretty crap as well.
But on average how do we really compare ?