The bit that confuses me is what people expect for kids who have behavioural needs, or are ND, but do not have learning disabilities - eg they are capable of accessing the mainstream curriculum albeit with support.
My mum was a teacher in a special school in the 80s and special schools were not academic at all, it was kids with down syndrome and learning disabilities and brain damage & genetic conditions, who needed care as well as education, for their own safety and others. The curriculum focus was on self care, independence - being able to prepare food, use public transport, employ a functional level of maths/reading, interact with others people in the community etc.
Nowadays there seem to be a host of people with children who don't have learning disabilities etc, but who expect the state to provide an incredibly tailored, one to one level of provision, even where this doesn't appear to be effective in enabling the child or young person to attend school or work.
Its just not sustainable. Its not up to the state to spend £50,000 per kid to ensure a child has no demands placed on them ever and make every child emotionally happy with equine therapy and dance classes and one to one tuition.