If it's a real job, it should pay minimum wage.
If it's designed to give people genuine training & opportunities, it should be voluntary - absolutely no shortage of people in 2014 desperate to work who'd be signing up for real training.
If it's supposed to create jobs, the evidence shows that it doesn't.
If it's designed to punish people for being poor & workless, it shouldn't do so by taking other people's jobs away & thereby creating more poor, workless people.
I don't particularly want to make anyone do pointless fake work stuff for the crime of being a parent, single & skint, unlike some on this thread it would seem - but even if one does think like that, it's just...dumb. Doesn't benefit anyone but the CEOs of Tesco, Poundland etc. At the not inconsiderable expense of the rest of us.