It’s so worth while though compared to the absolute nightmare of trying to set up guardianship.
if person has very little savings, doesn’t own their home, has added their trusted person as a 3rd party to bank account already, main income is pension credit or state pension AND they are generally agreeable to advice and would accept care if it were suggested… then you may have only a moderately difficult time if they lose capacity and are no longer able to make decisions for themselves.
if any of those don’t apply then really, do do it, it costs the same as the first meeting to set up guardianship.
honestly I think esp with home ownership people should be setting up poas with their mortgage and life insurance.