[stusmith1977]

The problem there is the word "allotment". How can you allocate in advance how many sick days to give? If you allot (say) four days sick each year, and an employee is sick three times, surely the rational choice towards the end of the year is to "use up" that allotment?

Without an allotment, employees will generally take a sick day when they're actually sick. Sometimes you'll notice someone who seems to take a lot of sick days. In that case you want to have a friendly chat with them - it's almost never the case that they're just taking free days, rather it's almost always situations like: they're not happy for some reason, they need flex working, they can't afford to repair a car and the commute is worse, they're suffering stress, etc etc. In other words, things it is useful to know about so you can help them (and hence help the company).

Sick day allotments are a way of ineffective managers avoiding confrontations with people: they just end up punishing everyone.