Other
Perspectives; Try yourself or involve seasoned well wishers to convince daughter and son in law to support you to the best of their limits. They may understand after persuasion or some skilled/hard talk..
If possible daughter may take some policy that can cover dependant Parents. Banks like say; PNB may offer policies that have fewer premiums and without any age bar…
If workable, suitable explore if you can avail loan of your property…e.g; Reverse Mortgage..