most unemployed people want to work, sure a number don't, but have you ever tried to live on £60 a week
and from the pay that some employers offer, minimum pay, no wonder they don't want to work. you pay peanuts, you get monkeys, fair days pay for a fair days work
if they are single, i don't think they would get tax creds, if they do have kids, then the pay should be enough, that they shouldn't need tax creds to survive.