I think there is also a marked difference between the rearing of boys and girls.
EDB bless her never understood men but has this idealised vision if the perfect man/boy.
So they are honourable, don't cry and have a horror or tears or emotions, they are all good at maths, ( see all joeys boys and nephews) they are happy to be sent off oy boarding school at 8, eager to go and pursue man stuff.
They aspire to do man jobs. Doctor, engineer, bank manager.
At a pinch naturalist or if eccentric an artist/music teacher.
If men don't conform to this they are bad eggs like Stephen Venables/carrick. Gambling she obviously hates, all her bad characters gamble or play cards in Sunday. 
She describes Joey mothering as the way she thinks is the perfect balance between discipline and being a loving friend.
Of course she gets it wrong because she never had any children herself.
Joey would be your worst nightmare head of the PTA.
However my dm was very shy and suffered with anxiety all her life do we kids weren't able to do loads of things other kids were. She couldn't even go to the cinema and we couldn't just have friends around without giving weeks of notice.
So as a child Jo was my ideal mother. Open house, always entertaining the trips friends and Definatly not shy.