If you knew about Sweden (lived there your whole life, for example), and knew some about the state of the "level of welfare" that you talk about, then you'd know that it is not paradise spoken of.
Perhaps, compared to Turkey it is (says more about Turkey than Sweden) paradise - but there are cultural aspects, less sunlight hours / day and several other aspects. (the yearly income is eaten up by an obscene tax-pressure, to mention something else)
Generalizing isn't a good idea, imo - even though I understand that it's easy to see it black / white.
I do agree with the fact that not having to struggle to get food, hunt and all of that everyday makes it easier to fall into a (clinical) depression-state.