Life is different to how it was 'back in the day', so is child poverty.
Families living in the slum back to backs were part of community where many people were willing to help out however and wherever they could. (Not everyone, there has always been people who can't or won't help their neighbour). Often they lived within walking distance of their wider family.
Today a family in poverty could be living in one room in a Travelodge far from family, friends and neighbours. No cooking facilities so providing meals is hugely expensive, not even the means to cook beans or egg on toast. No fridge. No washing facilities and very often no laundry within easy travelling distance. Parents and children in one small room with a severe lack of storage space. Some families live like this for more than a year. They have a bed and heating but morale must be low. Nowhere for the kids to run round. Even worse, the rooms are allocated on a 28 day basis after which the family must move often to a different Travelodge in another part of the country.
The parents, the council, society - somebody, somehow has messed up, but not the children. If you think those kids have it easy, think again.