There are forces acting against both: People don't want to take a "sick day" if they don't feel debilitatingly sick because they might feel like they're cheati

There are forces acting against both: People don't want to take a "sick day" if they don't feel debilitatingly sick because they might feel like they're cheating. People don't want to take a "wellness day" because their work environment makes them feel pressured to not throw a whole work day away just because they "feel like it". I.e. they feel that one should consolidate those into longer planned-well-ahead vacations, otherwise they may feel some judgement from employers/coworkers whose work is affected by their absence. It is of course a sign of our great cultural sickness that either of these psychological problems are even prevalent (and from my experience, they are prevalent - majority even).