Blooming trees in Dublin city center during the COVID-19 lockdown.Artur Widak/Getty ImagesIncreasing numbers of young Irish adults live with their parents.A severe housing affordability crisis is to blame.Rents in Ireland jumped 84% between 2010 and 2022, far more than the EU average.Housing has become so unaffordable in Ireland that younger people are increasingly moving back in with their parents — or never leaving their childhood homes, to begin with.According to the 2022 Irish census, 41% of people between 18 and 34 years old lived with their parents — a nearly 10% increase from about a decade ago.