A bit off topic - but when such a large proportion of people live in flats, what effect does it have on their personalities? In the UK, they have spent the last umpteen years demolishing flats because people don't like to live in them. Worries about lifts breaking down, vandalism, lack of play places for children, increased crime etc make them unpopular. So apart from city centres where the new flats are drawing in the young and rich, other tower blocks are falling under the steel ball.