Whilst I take your point AB, that nuns were teachers and any person who attended a non secular school half a century or more ago would levy the same charge of uncharitable behaviour against lay teachers. However, in my opinion the behaviour of some nuns and priests went further than just a sharp tongue. We now know what has been uncovered in Ireland, the story of Philomena, The Magdalene sisters and the enforced labour of unmarried mothers in laundries and the like, not to mention the enforced adoption of babies born to unmarried mothers and then more recently the uncovering of mass graves of babies in rural Ireland, can't remember the name of the place. The misery some immigrant Catholic children suffered in places such as Australia and Canada where they were sent, it's all well documented.
My personal experience of nuns is that they were fairly unpleasant, frustrated and uncharitable people who didn't particularly care for the children they were supposed to be teaching. I can only speak for myself. I went to a Sacred Heart convent, but believe me there didn't appear to be anything sacred about the nuns and they had very little heart. They took in a quota of us from my state Catholic junior school, I believe they had an arrangement with the parish priest whereby they waived the fees for us in exchange for some financial propping up from the parish funds. All the other pupils were fee payers, the majority were non Catholics, and believe me, whilst the nuns liked their money, they sure as hell slagged them off behind their backs whenever the opportunity presented itself such as the times the Catholic contingent were being herded off to hear mass on saints days "the prods" were no sooner down the corridor when we were being urged to pray for their protestant souls to save them from eternal damnation and were also told never, never enter one of their churches because God almighty won't be there, non Catholic churches allegedly were godless places
The nuns duplicitous nature however didn't preclude them from simultaneously sucking up to the "proddy godless fee payers" by telling them they had excellent breeding, and we the lowly state school kids didn't have any breeding apparently. Clearly we were the spawn of Frankenstein, but at least we were Catholic trash! There was a third highly elevated species at our convent. Catholics who paid fees, thus deeming them non trash, not only did they have excellent breeding but their souls were not sullied by entering "godless churches" on Sundays. It just couldn't get any better than that. Loads of grovelling and sucking up to their parents, until the unexpected happened and one set of parents from that category got divorced
which demoted their offspring into sort of unspecified limbo land and she was viewed by the lovely nuns as a deviant once her circumstances became common knowledge. All in all this was typical of the drivel they delivered on a daily basis.
I'd like to think that sort of person isn't teaching children anymore, I have no idea, I'll take your word for it things have improved.