Mostly anecdotal, although I’m unsure how you would provide other forms of evidence.
I grew up in 1950s-60s Ireland, a country in which the word “morality” meant “sexual morality” only; I speak from my own knowledge. Then, unwed pregnant women were outcasts, often from their own families. There’s been a stream of callers to radio here over the past few days testifying to this.
Unmarried motherhood in Ireland was shameful and if it became publicly known caused reputational damage to the woman, her family and her child. Birth in secret in a Home or in England (even in an outhouse or field was not unknown) followed. Infanticide was far more common than is realised.The baby was snatched away and hastily given for adoption (sometimes illegally, to a “nice American Catholic couple”, unvetted).
The situation in Britain doesn’t seem to have been vastly different; just last night I watched a TV show “Long Lost Family” which re-united English mothers with their long-lost children forced into adoption. It won’t run out of subject matter any time soon.
There are special historical factors re the Church in Irish society. It provided moral and political leadership when there was none other, schools, hospitals and social support when we couldn’t afford them, and acquired stature as a result. We may be dirt-poor, but we are decent and moral people, witness our piety, we believed, and anything that spoiled this image was hidden away. But the Church-people interaction has never I suggest been culturally neutral. Clerics are inculturated like everyone else. Religious principles notwithstanding, it’s probable those in religious life have the same notion as everyone else of what is "respectable”. The Mother & Baby and Magdalene Homes are really a manifestation of cultural attitudes of the period.
This is not popular with anti-Catholics; they’d prefer everything to be the Church’s fault, tout á court. The current malevolent fantasy of nuns starving despised “illegitimate” children, then “dumping” their dead bodies in sewage, chimes with them, and fits their demonology rather well. You could say, ironically, that for them it’s a godsend.