Because we have vacation time and personal days allotted for that. If they were to lump the sick days and vacation time into one, then yeah, i agree with you. Then you just have a pool of days to do with what you wish. But, the bad side of that is if someone is legitimately sick for two weeks... then they get screwed out of having any vacation. I for one would much rather have it the way it is than to risk something like that. I've been sick for two weeks at a time in the past.