Humans mainly do four things: eat, shit, fuck and sleep
How we go about this:
Eating generally consists of consuming large volumes of flavourless shit.
Shitting is done on cold, uncomfortable toilets which are too small for our arses and are often too low down
Fucking is taboo in even the most basic forms and is controlled by rules which turn it into a showing off attempt rather than a pleasure activity
Sleeping is done sparingly, and you get bonus social points for getting barely any sleep at all
This is how humanity works.