If you are in your 20's and grew up in a middle class family in Vancouver, Toronto, Sydney, Melbourne or Auckland, and have a middle class job, it is virtually impossible for you to be able to afford to buy a house in the city in which you grew up. E.g., here's a New Yorker article on the impact of the global property market in Vancouver: http://www.newyorker.com/talk/financial/2014/05/26/140526ta_....
The political fallout from the intergenerational inequality over property ownership in Canada, Australia and NZ is going to be very interesting to watch...