Go to most of the small colleges in the US and you'll probably see the same thing. I don't know what it's like in Finland, but from what I've experienced at Swedish universities it also varies a lot. Uppsala, Lund, KTH etc have great student life and I didn't feel that people took it less seriously than at the american university I've been at.

Sure, we don't pay tuition, but usually parents don't pay for their childrens' living expenses during college either. I have about $50k in debt (very low interest loan), all from living expenses for 5 years. That plus the loss of income during this time means you can't really slack off.