on paper, yes you may be better off working - by a few £ a week. But when you factor in the cost of travel to work, work clothes, the loss of school dinners, housing benefit reduction, council tax to be paid and the other help you loose it doesn't always work out that you're better off in reality.
Then there's the work outings (which I can never afford to go on so get labeled as anti social), the secret santa, the sponsorship forms that come round, the lunch time trips to pizza hut for 'bonding' or drinks when people leave or start... Having to say no to pay rises or overtime because it will leave me worse off financially...
You then also need to find a sympathetic employer who is going to understand about half days, non pupil days, closure for snow, sick days (for your child/ren), your child care falling through. And that's in addition to time off for emergencies like the car breaking down.
You then factor in the stress, tiredness, sheer relentnessness of being a lone parent...
Yeah those couple of extra quid a week better off really seem appealing!