"“All people will take or do anything they want unless there are enforced rules ”
If true and all well this can only mean that you have never met anyone who has never taken a sick day, although sick, when the employment contract entitles people to 20 or so a year.
So - there are only 3 possibilities there, because there are many people that do that in our culture for a start
1. Your statement is incorrect
2. You haven't met anyone - which means, you really should get out more
3. You have met them but, have forgotten and should get the memory checked