@altmember
They don't build any facilities on these housing estates either - no corner shop, estate pub, community hall, nevermind GP surgeries and schools.
At the rate corner shops and pubs have been closing over the past couple of decades, I don't think there's the demand at all. Or maybe there's a "demand" but not enough to cover the costs and to make a living for the owners of shops and pubs.
Uncertain about community hall - we've one in our village that is forever advertising for groups to rent it - there seems a definite lack of demand, especially during the day. It seems to have the odd dance lesson in the evenings but very rare to see anywhere there in daytime. Pretty cheap too as we rented it once for our young son's birthday party.
Re schools and GP surgeries, they're all about centralisation, grouping, being bigger for economies of scale, etc., so it's highly unlikely you'd ever get new small ones being built, and of course, the staff shortages mean you'd have trouble staffing it.
I don't think it's necessarily a lack of thought by the developers, it's more that they'd probably put land aside for these places, or incorporate say a few shops, but find they'd never be taken up by anyone.
There's a purpose built student accommodation block near us. The ground floor was earmarked for a convenience store. It's been five years since it was built and the convenience store is still empty - they just can't find anyone willing to take it on despite constant advertisement and changing agents a couple of times. In theory, it should do a roaring trade with maybe a couple of hundred students living above it, and it's on the edge of a new build estate with maybe a hundred houses, so maybe 3/400 people, but no takers.
Sadly, certainly with the likes of shops and pubs, people talk the talk about wanting local facilities, but won't walk the walk and actually buy stuff from them!