You work 9 hours out of 24 which is 37% of every day
You work 5 days out of 7 which is 71.4% of every week
You work 48 weeks out of 52 wich is 92% of every year
If you start work at 16 and retire at 68 with life expectancy of 75 that's 39% of your life.
When are you supposed to live your life? Those few years at the end when you are decrepit and broken? Fuck that!