Short of a court order, which would be unlikely IMO for an aged person, the quacks can't operate without patient consent, or if incapacitated NOK or alternate.
For any older person a living will should be essential or the quacks will cut them as that's what they do.
I looked after many patients with a bag and long ago decided that other than a temporary bag would never ever allow them to give me one of those. Death is IMO preferable.
Others may choose to live with one, but that is their choice.