I'm on 32k in a 4 day a week job (so 4/5 of this pro rata).
I have 2 DC, one aged 1 who goes to nursery 10 hours a day on those 4 days, with 15 free hours, but bill is still £800 odd a month (after tax free deducted).
The other is aged 5 and goes to school, but in wraparound on those 4 days.
I take home about £1770 a month, and my childcare is around £1000 a month - so the net take home for me along is about £770.
I've worked out that I could work in a term time only, school hours, part time job, earning about £900 a month, paying a much less on childcare and take home maybe £600 a month.
I do have a DH who earns a decent amount, but seriously, why are we all working our arses off for maybe £200 more a month!?!?