If you now some empathy for the child because you are learning more about ADHD, please think again about the attitudes you and the school seem to be expressing about this family and their home life that you seem to look down on - please reconsider and show them the same respect you show their child.
They will be seeing a different side to their child. They saw them growing up, developing differently to their peers, having different home lives to their parent group friends, homes that were disrupted by emotional breakdowns, sleep issues, eating issues, sensitivity processing issues, any of the myriad of issues that these children can go through. All the time not understanding what’s going on and trying to get help. Watching your child be distressed all the time is torture.
They have probably spent years trying to get support and help from educationalists who believe it was because of what they were doing as he was not like it in school. They probably don’t feel that warm towards school because of it. They spent years getting the right assessments for their child, got believed, proved right by clinicians and yet some people in school still don’t believe them! You can guess what this feels like based on some of the responses from parents you’ve received on here!
If there is a genetic component, the parents may have unmet needs relating to similar conditions but are doing their best. Or have issues based on how they have spent years of their lives poorly treated when in school by people who were not well informed about the condition. Or have other children with issues too which compounded would make most home lives appear even more unusual to a NT outsider.
Im so pleased you chose to learn more to help this child and I’m hopeful that you won’t be so judgemental about children you work with in future. I’m just asking that in future, try to look outside of the narrow bit that you see and imagine what they as a family see.