I've done a bit more reading about this and broadly I think Truss's argument is not totally barmy. However, I do wonder if she has mis-analysed the situation in mainland Europe.
I think most people agree the qualifications are off-issue here (especially 2 GCSEs in English and Maths, that doesn't remotely approach what you learn in a childcare diploma), but maybe the ratios are too. I'd be really interested what nursery professionals have to say about this. I'm not so freaked out by "1:6" because I live in Germany where it is normal. But there are two differences. Firstly, it's not 1:6 in a room of entirely two-year-olds. It's 1:6 in a mixed group, aged between 1 and 6 with one or two babies as not many under-1s go to nursery in Germany. Because all the groups are mixed age, the older children don't need the same intensity of attention as the little ones, and they do balance the intake across the ages.
Secondly, German nurseries seem to have massively much less red tape than English ones. Being British, I would find more regulation reassuring, but I try to hold my nerve about it because it's true that there comes a point where risk-aversity does more harm than good. The children at DD's nursery go out every day - to the park, the zoo, museums, the forest, gymnastics, sledging - all on this ratio. We don't sign consent forms, we don't even know they've gone until they're back half the time, they often go spontaneously. There are no accident books as far as I know (accidents are logged with the central authorities if the child has to see a doctor) or communication books, nobody logs what the child has eaten or excreted - the staff spend their time looking after the children, not filling out forms. IS nursery care so much better and "individualized" in Britain, thanks to the ratio? And is my DD's experience, because it has lower ratios, more "institutional"?
If the problem is actually paperwork, not ratio, the same amount of paperwork with a 1:6 ratio will be worse, not better. All the red tape the Tories say they're going to cut is about staff regulation, but not what the staff have to do every day with regard to the children.
From the Tories, I would like to see Truss's ideas backed up by some concrete proposals to actually bring about the effects she claims, rather than just theoretically make them possible. I would like to see some calculations regarding how much salaries can rise by, on these changes. And how are they are going to regulate it, many nurseries will cut ratios and not lower fees or raise salaries because they are private businesses with waiting lists, not charities. Regulating the free market's hardly very Tory...