Mollie that's what the government is going back to.
Two things stand out for me though. One is that I remember the old system, and there was this horrible ridiculous situation where you were no better off in work, if your income was low. Single parents who actively chose to have another child every time the youngest started school, and those who deliberately avoided work were better off. Tax credits made it so that anybody was always significantly better off in work.
They were generous and like anything open to abuse, but for many the carrot approach worked. I believe that having a parent in work even part time work has a knock on effect on the children for lots of reasons.
The other thing is that we are at a point where lots of single parents are currently relying on the money and will struggle to find the shortfall. For those with high. childcare/travel costs work may become unaffordable in the short term.
I think that people need to be looking to be financially independent as children aren't meal tickets and ultimately you will still need an earned income long past your children growing up.