The vague cultural identity can have fairly concrete impacts though - baptisims, kids making their first communion in school thus religious instruction, Church control of schools etc.

From the 50 odd primary schools listed here as being ins South Dublin a quick read through puts a majority as religious run schools just based on the name: https://www.schooldays.ie/primary-schools-in-ireland/primary...

My wife is expecting our first child in a few weeks - I expect to go from the registrar office with his birth cert straight to the two nearest Educate Together schools.