12 year old with autism & ADHD. Such high needs that he is full time 1:1 and 2:1 off site.
Is it reasonable to say that part of what his 1:1 should do is support him to ensure that he doesn't keep losing his bloody stuff!
Jumper. Coat. etc.
Ordinarily yes, it would be the responsibility of the child. But when that child is unable to function at school without the constant presence, support and assistance of an adult who is assigned to him and him alone, is it reasonable to say that that adult should be aware that they need to get him to check he's not left his stuff lying about?