GG I had quite a big gap between eldest 2 children and my 'baby' (33). Even in the short time, approximately 5 years, between the eldest 2 moving onto senior school and the youngest starting, I was really taken aback at how things had changed. His teacher, who had always taken reception, knowing I was a 'lady of leisure', in that I didn't work, asked me if I would be willing to help out at PE time. No, not with the games, but to dress the 5 year olds! She wished parents would stop teaching them to read, etc, and concentrate on the basics, toilet, dressing, tying shoe laces, etc. They just stood there!
Nursery school, when mine were young, were places to socialise with other children and play. School started at 5. Oh dear, I do sound old.
If you are interested, although you probably know already, have a look at the Finnish schooling system. Seems pretty good to me and I know my soon to be guest is very proud of it.