When hiring contractors the company doesn't have to pay any of these things (it's on the contractor). I'm currently contracting for a company in Italy and getting much more than 3k/mo.
In my country, pension payments is mandatory. As well as insurance for maternity/paternity leave. I've full medical insurance. Well, as full as regular workers. The only difference is I don't have paid sick days and can't claim unemployment benefits. Which kinda makes sense when freelancing.
I think I'm eligible for disabled pension though. So if I got hit by car, I'd get free treatment. But no salary compensation. If I was rendered disabled, I may be eligible for disabled benefits based on my previous incomes. Or at least basic disabled benefits.