I was the child in the programme, not eating well while my Mum smoked 40 a day and drank Special Brew. We ate potatoes and tinned tomatoes for a number of meals each week, along with a meal I invented which was spaghetti, topped with a sauce made by heating up a tin of tomato soup. We lived in the country, meaning the nearest shop was a "corner shop" and it was a long way (10 miles) to a supermarket for cheaper food.
I remember how angry my mother's fags made me. It was the late 80's and fags were, relatively speaking, fairly cheap then. However, she would take the wrapper off a pack of fags while telling us that we would need to go to the shop with money earned from part-time jobs (my sisters were 14 and I was 16) to buy dinner. One year, I bought a microwave by saving all my money and "surprising" her with it.
It is a shit life. Yes, she was depressed and miserable (and, it became clear, an alcoholic). There was no pressure to work back then and, in any case, my youngest sibling was still in primary school. We didn't mind helping to pay for food but it was galling to be doing that so that she could support 2 horrible and expensive habits.
I do think there ought to be more funding made available to people who need deposits / new cooker / fridge and that kind of thing because these unexpected costs are a bugger. I was still paying my mother's bills for years after I left home - she just couldn't manage her money at all, having "fallen" from affluence when my parents divorced. But, there was always money for cigarettes - never a question that those would be bought, along with the wine / beer. Then she would spend what she had left on food and bills.