Most Danes buy property in their 20s and 30s, usually with help from their parents. It helps that mortgage rates are still very low too. There's not as much of a renting culture as there is in say, Germany.

In the Copenhagen area property prices are already growing faster than salaries. Apartments in my relatively central area have gone up by over 20% in the last 3 years. I'm not sure what the situation is like in smaller cities across Denmark, but probably not as severe. It's widely recognised that Copenhagen has the lion's share of the best jobs in the country, but there are efforts to remedy that (not least the government's rash decision to move many important offices to other parts of the country).