As a UK resident & parent, I can confirm this is already happening with 'Health visitors' who have the responsibility for new birth visits and are supposed to give advice on feeding, weaning & all that baby stuff which sounds reasonable but since about 5 years ago following a baby abuse scandal, training for health visitors has included 'safeguarding' which is basically spying on parents.
They don't tell new parents about this aspect of the their job -- they come in for the visit and if you admit 'you're suffering from depression' or 'you're finding it hard to cope with the baby' or they notice 'the house isn't clean' or whatever else they've been trained to look out for, then your information is passed on to Social Services and you basically go on a watch list giving them an excuse to take whatever action they deem reasonable including taking your baby.
This latest move is simply an attempt to cut out the middle-man by moving the job from Health visitors directly to Social Services.
They don't tell new parents about this aspect of the their job -- they come in for the visit and if you admit 'you're suffering from depression' or 'you're finding it hard to cope with the baby' or they notice 'the house isn't clean' or whatever else they've been trained to look out for, then your information is passed on to Social Services and you basically go on a watch list giving them an excuse to take whatever action they deem reasonable including taking your baby.
This latest move is simply an attempt to cut out the middle-man by moving the job from Health visitors directly to Social Services.