he/she is probably not from the US, 30k is a high enough salary in other countries.
If I´m not mistaken, Finland has free healthcare, education and generous welfare system (that you said you benefited from, as you should), all of these should be taken into account when making comparisons, since they factor in the taxes companies have to pay for hiring people.
That said, it still seems a bit low for Finland, but ok for a recent graduate.
Other sources aren't nearly as helpful, but they put me somewhere in the middle of all people (or something).
I'm sure some people earn more, especially closer to Helsinki, but currently I'm content with my earnings.
So don't be surprised we worry about money.