To be fair generations living under one roof has been a feature of Irish society for centuries. There's nothing new in any of it save, perhaps, the expectation that every child should have it's own room from birth. I have friends who lived in 3 bedroom corpo built ghettos up above in Dublin within which the parents had their own room (without ensuite) and then there was a boys room and a girls room each of which might accommodate up to 5 children. While that seemed horrific to me as the child of immigrants who had rooms labelled "spare" and "box" it wasn't unusual and many kids dragged up in such environs done quite well for themselves, pehaps with the aim of bettering their parents?