If they take unpaid leave that means they are compensated well enough so they can afford to take unpaid leave. What is the difference between having paid vacati

If they take unpaid leave that means they are compensated well enough so they can afford to take unpaid leave. What is the difference between having paid vacation days or having a salary so high that you can afford unpaid leave? Also, this is a nice indicator as well... https://www.timeanddate.com/holidays/china/ https://www.timeanddate.com/holidays/china/ https://www.timeanddate.com/holidays/japan/ https://www.timeanddate.com/holidays/japan/ https://www.timeanddate.com/holidays/india/ https://www.timeanddate.com/holidays/india/ compared to this: https://www.timeanddate.com/holidays/croatia/ https://www.timeanddate.com/holidays/croatia/