Now that my Dh has gone into a care home (where by the way he is content and settled) I am 'recovering' from 5 years of 24/7 caring for him. I was a very hands on Granny to my 3 grandchildren. because all 3 were born by C-section, which meant that my DDs were not allowed to drive, do heavy lifting, etc. for some weeks. Later DH and I did babysitting, nursery and school runs as necessary.
All that changed with DH's accident and subsequent Dementia Diagnosis. Unable to take him with me to family events nor to leave him home alone, I/we have missed out on sports days, prizegivings, performances, birthday parties all the good stuff and been unable to help much when DGC were ill or DDs had a crisis at work. This is my biggest regret and feels like a sacrifice made because I was a 24/7 carer to my DH.
JBJ's DH is not going to improve or get better. Old age will only exacerebate his disability. Unless she makes a stand now and claims some autonomy, some time to do what SHE wants, she will miss out on what many of us consider to be the best part of our later life = being a very involved Granny.