Haha. No, you are not eligible for that sort of stuff if you are working.
Yes, 2500EUR net is not very much money.
But it is enough to survive in Stockholm.
There is no requirement for you to live in the CENTER of town.
You would have to adjust your location to your pay.
And if you are a two income family you would be getting off quite nice.
Stockholm is full of students who survive from 950EUR/month
Around half of that is spent on rent.
On top of that beer, herbs, books and travel passes..
So you can manage!
Edit:
Yes, if you are a guy who have been working abroad the last couple of years and waiting for a chance to return home, the salary is poor.
But for all straight from school it is OK starting pay.
On the other hand, type-rating mandatory so most have been working abroad with higher pay.
But then Norwegian has better deals if you get over to the "Core" after 2 years.