I personally wouldn't have said it was,or is, anyones' fault how children turn out whether adoptees' or not.
It's in a childs' make-up,no matter how good or bad any guidance was given,as there are good and bad in biological families of those who are " well off " against those who aren't.
As soon as a child is old enough to understand,they all know right from wrong.One of the first lessons learned either at home or at kindy,and it all depends on which path they take. Any child will nearly always do the opposite to what you tell,or ask them,just to try your patience and see how far they can push you.
A lot of behaviour is genetic,and no amount of moulding that child into something you want it to be,will have, or make any difference.
Where did Sheila get her promiscuity from.? It certainly wasn't June or Neville,and no doubt they tried their best in bringing up both children,,but just because they were adopted is no excuse,as biological children can pick up a rogue gene from a previous generation.
So because they were adopted doesn't mean a thing,for as tiny babies,they weren't aware.
Boarding school for any child can be a bad emotional experience away from parents. Again,,it does depend on the child,as some children settle quite happily,but Sheila,like a lot of others did not settle and proved to have a lasting effect on her as a person. Sheila may have been a wilful child who didn't like conformity or discipline,and as she became mature,sought outlets for her feelings.
What I'm saying is that it isn't only those who are adopted that suffer these pitfalls in life.It can,,and does happen to anyone. It's the separation in any family which is damaging to most children.
To be perfectly honest,,I don't know how any parent can send their children away,under any circumstances. It's pointless to say it's because of the education, etc.but if the child is unhappy,it can only brew trouble for its future and will naturally rebel.
Sheila may well have been happier at state school, without her future having been mapped out for her.
June and Neville had obviously thought they were doing the right thing.With Jeremy they did,but poor Sheila was just on a downward spiral,with sadly,no thanks to June and her religious mania. Though she probably thought it would have helped.
I knew a teenager a few years ago,who a lot would have said would have been a no-hoper with two alcoholic parents.But this lad attended school and did so well that he gained a place at University and he now lives in the States,pretty wealthy,as he went into Real Estate.
This lad was the poorest of the poor but was determined to get out of the family home,so kept his head down and got stuck in with his lessons,,and succeeded. He could easily have gone the way his parents went,but chose not to. So whether rich or poor,everyone has a chance in life and it's whether you're determined to see it through or not.
I don't know what Sheilas' mother did in the way of employment,,but whatever it was,Sheila didn't follow in her footsteps.