Bianca can't sign on as she has two jobs, though in 'real life' she would get working tax credit and child tax credit, which would be a hefty amount as she's working for NMW (I assume, can't imagine Ian Beale or Janine paying more!) and she has three DC (Whitney doesn't count as she's over 18 and working), but in soap land tax credits don't exist.
In real life Bianca's family would be what you would call 'working poor', I'm in that category, and it's shit.
I do get Tax credits, but by the time I've payed out Rent e.t.c (everything I used to get for 'free' when I wasn't working) I'm about £20 better off than I would be on benefits. Except I've to pay £18 bus pass to get to work plus 25% more council tax cause DP lives with me now, plus all of DP's needs as he can't work due to illness caused by his past, and he can't get contributions based anything, cause he hasn't worked for years, and he can't get income based anything because I earn too much 
I have to keep DS off school if there's any trips or visiting science fairs e.t.c as I can't afford the fee's, which the free school meal brigade get for free, even though they're better off than me, and 'voluntary contributions' doesn't seem to exist up here in Scotland 
I'm dreading when he goes up to secondary, as the only school he can go to has a 'private school' uniform price list, despite it being a state school, I can see me having some falling out with the teachers when they try to punish him for not wearing the £80 Blazer, I'm already planning my 'dropping hint's' speech to next door for their DS's blazer (he leaves just before DS starts)
It's fucking shit being poor 