OP sounds like the ideal employee who works 8 hours, then spends 4 more hours/weekends learning and working at home.
For people who like doing other things, work already takes up most of their time and energy 5/7 days, and there doesn't seem to be much time for much else.
For people who like doing other things, work already takes up most of their time and energy 5/7 days, and there doesn't seem to be much time for much else.