I'm sure that could happen especially if the person has lots of money and haven't made any plans IN-ADVANCE. But this was a movie; not a documentary.
Everybody needs to make plans in advance for when they may not be able to care for themselves or somebody will do it for you - another someone or the government.
Take time to assign your own powers (power of attorney / healthcare power) and/or establish a trust with a trustee (a person or an institution) that one trust - and knows your wishes.
You can even appoint a Personal Representative for your Social Security benefit funds on your personal Social Security account - that way when and if the time comes for somebody to take over paying your bills - SSA doesn't have to pick someone - person or institution.
You got it all set up - right!?
It's Always Something . . . . Roseanna Roseannadanna