Allow me to further point out that 'just live with your parents' requires that your parents be close to your job. However the lion's share of jobs (worth having) are in Dublin. Therefore if you're not from Dublin you don't get the free parents rent, you pay the same $3k that you would rather pay as a mortgage or save as as downpayment, and are then outcompeted by those who were able to avail of the benefit.
Therefore what we're seeing is a total destruction of wealth for anyone outside of Dublin.
Nevermind the oft maligned truth that your ability to pay €X in monthly rent is insufficent evidence of your ability to pay €0.8X in a mortgage thanks to the new rules brought in after the previous generation a) got their houses and b) ruined everything with bailout debt.