BackforGood.
One reason why a school may not apply for a statement?
Because on a lot of areas (possibly all now, I don't know, my area was one of the first in the country to adopt this), Money to help a child that is given through a statement is RINGFENCED for that child, ONLY to be used on that child.
Money that is given to a school to help a child on SA or SA+ is NOT ringfenced. And can be spent on ANYTHING, as long as that child on SA or SA+ receives ANY benefit from it. Like sail shades for the playground. Can be argued that the child on SA or SA+ gets the benefit of the shade from the sail shades.
(Just one example from my DC's primary school - through FOI requests, I discovered that the SA & SA+ budget was EXACTLY correspondent to the costs of the sail shades that were bought for the playground.)
Why did I make that request? Because my DD was a pupil there on SA+, the school refused to help me get her statemented (no support with even filling in the forms), lied to me about her levels from Y2 until Y6 SATS, and gave her NO support WHATSOEVER despite her being on SA+ for her whole time at the school.
She made NO progress from Y2-Y6 (her entire time at that school), left Y6 WORKING ON P-SCALES STILL, yet they wouldn't help with a statement because they would lose that money from their ultimate budget that wasn't ringfenced.
It's called a DEVOLVED SEN BUDGET.
And it is SHIT for DC's making no progress on SA or SA+ if the school then actively obstructs you from getting a statement because it will affect their budget to spend on tarting up the school to attract a more MC intake...
LA refused to assess until DD had seen LA EP. Only person that can put a child forward to see LA EP in Essex? School SenCo. School SenCo refuses to put your DC forward to see LA EP. No chance of assessment. All to protect their devolved SEN budget that can be spent on anything...
Only funding from a Statement is ringfenced. Hence quite a few schools being so obstructive when it comes to Statementing now.
Much better for their budget to have 40 DC's on SA & SA+ than to have 20 with Statements and 20 on SA & SA+...