Our new head seems very anti-parent volunteers and said yesterday that her reason was "Ofsted would be all over it - definite Required Improvement for having lots of random adults wandering around the school."
The previous head welcomed "targeted" volunteers with open arms - ie with regular help, requested by teachers, doing stuff that would help, safeguarding procedures followed. He said parental engagement was a big Ofsted positive.
Who is right? I have tried to google it and found a few papers which suggest a positive view held by Ofsted - but they are a few years old - so not sure if now out of date/superseded by a more wary viewpoint.