Do any LEAs still have the 'first/middle/upper' (ie 4-16) school structure anymore?

[miljee]

I'm just curious, really. I did (UK) village primary 4-11, grammar 11-18. Private schools in Australia, particulary new ones are getting into the P-12 structure, as in Preschool to end of education, year 12, all on one site. They tend to make a big song and dance about HOW IMPORTANT the middle years are ie yr 7-9 ('Middle school') so as to get state to private parents to commit a year earlier! (state schools do years 1-7, 8-12)Does anyone see any advantages/disadvantages in the different ways of going about it?

I went to first/middle/high school in Worcestershire and the system still exists today. For me, it was beneficial as I was a quiet and childish 9-13 old and not as streetwise as others, I feel it preserves childhood for longer.

Yes fennel - that's the problem.
About a third of my dds year 6 are looking around for independent / out of borough places. The state high schools loose the brightest and best.
I think spending year 7 in primary cannot be positive when the vast majority of their cohorts around the country are settling in to the high school regime and getting specialist teaching in specialist labs etc etc. I don't know how the primary schools, with few specialist facilities can actually cover the year 7 curriculum.