I wouldn’t dream of asking DS or DD2 to do the day to day care for DD1, after we’ve gone. It’s too stressful for us for more than 10 - 14 days. If the NHS was seamless and we got proper respite from SS, we probably could cope; but no respite centre in the county can cope with DD1 and the NHS won’t change any time soon!
DS works a minimum of 70 hours a week; often more. He doesn’t have time; and he has DGD with ADHD and possibly autism, so he’s dealing with the SEN system. English is a second language for DDIL, and she doesn’t understand the jargon, the education system and SEN here.
DD2 can’t look after herself and couldn’t possibly look after DD1. DD1 wouldn’t reliably get her meds nor food, for a start. DD1 can’t get over her jealousy that DD2 has everything she wants; although DD2 is even less happy than DD1. Plus, DD2 may well have DGD2 with ADHD as well!
One of their cousins has a DD with autism; so other children in the family could well be affected, but are too young yet for it to be obvious.
All we ask is that DC supervise her care, buy her clothes, etc and see her sometimes. (Well, DD1 doesn’t want to see DD2, so that might just be DS)