Another angle to this is people like myself who have chronic illnesses and disabilities may have to take more sick time/leaves/vacations just to stay baseline healthy and functional, but even if you somehow get accommodation from your employer to do that (def. not guaranteed, so many hoops to jump through) if you’re the only one in the office always taking time off it definitely looks bad. You don’t want to have to disclose your health issues to your entire office, but you also don’t want them to think you’re a freeloader who doesn’t deserve their job.
So if you don’t have a disability, take your sick days for those of us for whom it isn’t really a choice. Make it normal.