Re: Sex
"[...] as it was seens that being nailed down with familiy responsibilies and access to nookie [...]"
Too often they had to commit to marriage before tasting those forbidden fruits. Two quick kids and then they were often stuck in a loveless relationship. 20th century Irish fiction is often of the genre called "miz lit"***. The common violence towards wives by husbands - and towards their children by both - was not a good life.
*** "miz" = "misery"
eg
"Angela's Ashes"
"the arrival of fergal flynn"