How is this Normal?!

The living situation of so many middle-aged Spaniards is rather bizarre. Of course I didn't JUST find this out, but watching Step Brothers the other day prompted me to decide it was definitely Blog worthy. Very few people here get married before they're in their mid-thirties or so and the norm is to live at home until then. YIKES! Our madre's 45-yr-old daughter still lives at home. How about when these people meet someone at the bar, what do they do?? "Oh hey baby, let's take this back to my PARENT'S house." That's what makes the movie, Step Brothers, so hilarious. But I'm pretty sure the humor would pass completely over the Spaniards' heads. In most other aspects, I openly admit the Spanish people truly know how to live, but this little detail just throws me for a loop. How the heck did this become normal? Just sayin'.