@Theboymolefoxandhorse Re the research, my children are 9 & 11 so it was some time ago I did the reading around this and to be honest I can't find the books/texts I read then. But here is a typical link on the subject:
https://www.nurseryworld.co.uk/content/opinion/the-big-debate-is-the-expanded-entitlement-negatively-impacting-children-who-spend-longer-in-nursery/
Note the first commentator, who I would say comes across as balanced, has references to research. The second 'expert' works in a nursery, has no qualification listed, will not be following up on the children after the leave nursery, quotes no reseach and has nothing to back up her statements. Her comments hold no validity. (I have to be open and say I have no knowldege of nurseryworld.co.uk and can only make assumptions about their stance on things).
This article is old, but I think it is helpful in this debate, it references research:
www.theguardian.com/lifeandstyle/2010/oct/02/nurseries-childcare-pre-school-cortisol#comments
@LameBorzoi There is good research around this area. However, you are right, it is impossibleto do the direct study putting children in nursery and seeing how it works out. Not because you cannot randomise it, but because you would never get ethics approval for the research. No one today would sign off on the ethics where your hypothesis and prior research indicate children may be harmed by the experiment. Similarly, with controlled crying, you can't do a study leaving children to cry when prior evidence and hypothesis would be that the child is harmed.
What has been well researched by professionals is attachment theory, the effects of being away from parents, looking at the outcomes of children who have been securely attached and those who have not, and cortisol levels in children in nursery, amongst many other things. Many things are on a scale. I saw images of the undeveloped brains of children in an orphanage. They are left all day in beds alone with no human contact. The scans show the significant damage caused. At the other end, you have images of securely attached children with no damage. I am not suggesting nursery is any way like an orphanage, but if you look at the scale, you know which end is optimal. Babies and toddlers need to be soothed quickly when they cry and not left. How can you guarantee this in a nursery when the carer is doing it for a job?
I trust the experts who are trained in this field, studying 6+ years at uni and lots of learning between stints at uni and subsequent research and continued CPD. Some write books and make money, so I see a potential motive to say what they do, but others do not and use this knowledge in their therapy of their clients. I can't see the motive to make this stuff up, unlike a nursery that spouts rubbish about socialising a 'baby'. Professionals who study this inside and out, who know how to interpret research and apply it, are the ones I trust and read from. Many 'professionals' have a basic degree or course, but this does not make them experts in early childhood development. Take teachers for example...made out to be experts about children...the thing that sets them apart from anyone else with a degree is typically that they have done a 1 year PCGE ...how much of that is dedicated to early childhood development? That is not to say teachers are not knowledgeable, but we have to be careful about how we understand something so complex and hard to understand, and study alongside people's opinions and not wanting to undermine their own life choices. I can't read all the research and understand it, but I know which professionals I trust to have a better understanding.
@LameBorzoi I agree that the nuclear family is not natural, and I have not suggested it is. As per my previous post, it would be a significant help for extended family members and friends to assist parents with raising their children, including taking on some chores to make it easier on parents, mimicking a bit more, where possible, to a more group-assisted approach that would be more natural.
None of this is easy and I am not saying it is possible for most people. Nursary is a neccesity for many. But that does not mean we should not speak with truth and try to change things to move forward. If people bury their heads it will cause harm. If people are aware of issue they can mitigate it where they can and work around it in a positive way.
It is a natural desire to want to look after a child, but society is telling parents that parenting is not important and to outsource it.
If you had all the money in the world, what model what you put around your child? Would you use a nursery?
Think of the best case scenario for you with no constraints and work back from there, putting in the constraints and mitigation where you can to come up with the best solution for you.