I saw this and was relieved someone had highlighted it.
I run a playgroup. A leave your child one to prepare for nursery, for two year olds.
I have zero toilet trained, the nursery has four out of twenty. My first was toilet trained by 3, my second was not.
There is a wide variety of incomes. We have nanny's bringing children, parents working, not involved in that aspect. To very significant learning difficulties and us providing support for diagnosis.
We have parents with no education saying they will home educate after playgroup because they don't like the system, terrifying.
We have wonderful children with multiple needs and backgrounds and it's really hard going. We love it, but every day is a challenge.
We have one family who do not wish any medical intervention under ANY circumstances.
We have one who cannot drink tap water or brush teeth due to chemicals.
We have one who cannot be exposed to anything others might eat. So no visits from lambs etc.
We have allergies to manage.
We have the standard of child turning up dressed for a party and parents cross outfit was ruined, to child turning up filthy and smelling of cannabis and needing external referal.
That's a snap shot from a tiny place in a rural area.
So I have no doubt schools and nurseries are facing this wide scale across the country.
What we do? I don't have the answers. I just do what I can and focus on the children in my care until I can't anymore.