Thanks for all the replies and sorry for seeming to post and run!
To add some more information:
The parents are very loving and want the best for their DC. Both used to work but Covid/redundancy/caring responsibilities have meant that they’re both at home full time now.
We (as in people close to them) have realised that they can be quite ‘insular’ in their views and I’m afraid that now they’re in their own very small echo chamber it’s got worse.
The DM seems to have a ‘them and us’ attitude and we realised exaggerated stories and (we think unknowingly) told tall tales about the kids’ schools which we found out were not the whole truth and always portrayed the schools in a very bad light.
Things like “
DC was left to be pushed around in his wheelchair by other pupils all lunchtime and neglected. Another sibling was ‘bullied’ and the staff did nothing about it. The SENCO said xy and z to us in front of other adults’
I’ve since discovered that these stories are so far from the truth. Various unbiased witnesses with no agenda have stated that these events did not happen as the DM said.
We’ve also been in a situation where the DM has totally twisted, exaggerated and rewritten what actually happened.
Eg. Walking together and a car waits for us and DC to move then the driver can park gets twisted into ‘that man opened his window and was going to grab the wheelchair handle and nearly hit us whilst mounting the kerb and swore at us’
Think she sometimes forgets that these ‘events’ have witnesses or totally convinces herself that it actually happened 🙁
Sorry for the derail there. Things are just bubbling up as I type.
Parents of friends of her teen have said they’re concerned. One is a medical professional who is well versed in safeguarding and they have approached me to see if we’ve seen the girl.
The family aren’t engaging with any local homeschooling groups. The girl does online work (not from school as she’s been de registered) and seems to be in her room most of the day whilst the DP are with the younger 3.
I’m afraid without having any ‘normal’ outside influences their world will become scarily smaller to the extent it could really damage the DC.
I know how vital it is to have peers you can confide in and ‘safe’ adults you can go to when you’re growing up and, from what we know, the teen doesn’t have this.
I think the plan of action for us will be to get our DC to contact the teen again (after sporadic replies during lockdown the teen stopped communication) and try and arrange video calls or even see if they’ll have a socially distanced walk with us? Don’t think SS would be interested and it could totally fuck things up with the family.
Another local family with an equally vulnerable disabled DC tried to speak to them quite a while ago. Their DC and siblings have been going to school and no longer shielding but because, I believe, this did not mirror or support the shielding family’s choices they didn’t engage.
They must be so bloody scared.