Some people use them because they are not very needed in their jobs and their job is not really depending on them, but some are just too busy so their job is not really allowing them to take them often, sometimes a business depends on you and you cannot abandon it just like that so you simply postpones it to another period, when it will be possible to use it. Days off and sick days are days everyone who is working is in a need of, so even those people who are too busy at their jobs need to insist to get what they deserve, that is my opinion about it. So what about you do you use them often? and if so how sastisfied are you with the amount of days that your country and job permit.