You are over generalizing and working on stereotypical images of "benefit families". Some are of course like that, but most are a lot of genuinely hard up people out there who through no fault of their own are going through very hard times and do need much help.
All the "survivors" being interviewed on the day, did you not notice, they'd managed to get out of the building and picked up their large smartphones, even if not their relatives/neighbours....
When I used to do a lot more egay (before all the prats came online), I used to go out at lunchtime to the Postoffice to post all the stuff. I work in Bletchley, now a suburb of Milton Keynes. Bletchley has a lot of poor families, and is generally quite run down (like many areas, though, with areas of normality, and areas of more affluence... ...but the majority is poor). Anyway, back to the Postoffice - they had their clientele nailed. Every single time I was in there, suck behind the teenage mum collecting her giro, while her 3 or more kids are running riot around the shop area. So she'd collect the giro, but the shop had the intelligence to sell fags and lotto, so she'd blow £15 on 60 fags, and the same again of lotto tickets and scratchcards. No wonder the little baskets that had by now wrecked the joint were unable to afford clothes that weren't full of holes, or last saw a washing machine the day they were bought.