Buying a house for me and for many in Portugal is a complicated deal. Sure having a house that you can pay off is great, but it's also a massive commitment.
The most problematic of all is that it stagnates people. In my case, I work for a company in Oporto while living in a place like Aveiro, which is roughly 70 kms away (40-minute drive by car, 1hr by train). I telecommute so, I don't have to spend that much in travelling, however, if I had to work at the office it would mean expenses and time that I waste during travels.
But really troubling is that, yes you can buy a house, but assuming that you get a better job offer in some distant place. It would mean, putting up the house for sale, while you have to buy and maybe request another loan which would take another 30 or so-years to pay off.
Selling a house is very difficult nowadays. My parents took almost 2 years to sell our old one thus repeating that process would be almost financially suicidal at this point. And when you don't sell, you still have to pay for the local taxes in both your new home and your old one until it's sold off. And this is no bull, I had to visit the old house every month to open faucetts for an hour because it's was cheaper than to have no running water.
Penafiel City Hall(in the town where I lived) actually charged more water works taxes for apartments and houses that didn't report any increases in their water counter.
It's a cultural thing, owing a house is the quintessential portuguese way of life, but with the housing bubble that mindest is slowly changing.