Why? Do people in other countries get paid sick leave

It seems you're American, so I'll assume you're seriously asking. So, er, yes. In Australia definitely, and my understanding is that we're not the most socially supportive amongst nations.

Wait until you hear about mandatory vacation days. Mandatory in that you must take them. As a US citizen, Swedish vacation laws make me want to cry.

The only people at my work who get any paid leave at all have been working full time for months, nobody else gets paid leave, and part-time gets no dedicated leave at all or any benefits