Does she not claim any benefits at all? I’m sure she could, were a small place made available to her, and it'd pay her rent too.
I wanted to ask if you reckon she is prepared for the sad but inevitable event of Mum or Dad passing away, and then the remaining spouse becoming sick from the loss, and in effect very much older suddenly, and in need of 24/7 care.
How on Earth would that scenario play out? Or if, God forbid, residential care is required and the house must be sold to pay for that?.
In short, is she aware of the troubles that may be in store while she lives rent free and idle in the house of ageing parents : that could all change very dramatically due to the care needs of said elders.
She really ought to be trying a bit of self sufficiency asap, for her own sake.
(All of which supports the suggestion of their buying two small adjacent units somewhere, if funds permit it.)
[I know in my own family, my maternal grandparents went almost overnight from hale and hearty 90-year olds to one bewildered old gent in a nearby care home suffering from dementia, and his adoring, jolly wife of 70+ years turning her face to the wall and willing herself to catch pneumonia (which she did, with the swift, predictable result)
A close family member of about 70 had been living with them as their housekeeper-cum-nurse, and she was pretty much turfed out into the night so that an actual nurse might move in to care for grandma.
By order of my uncle, who turned out to have their POA. The son, therefore the beloved child.
He came out of the shadows like a giant bat, and turned all the angles in this sad mess to his own advantage, though he'd not lifted a finger to help his parents, ever.
It was all a horror show, and it’s at such times that depths of heartlessness are plumbed in families, once any whiff of sharing a care burden clashes with the eager wait for a will to be read.
If you can exert any soft influence on the QT now, you might be sparing everyone involved many arguments, harsh words, and above all, spare an anxious and even bereaved parent a goodi deal of anguish and confusion.