You will get outrage from some about patronising/infantilising older people. But my observation has been that as your mental and physical faculties decline, you do become more childlike.
Obviously there are many older people who retain all their faculties and retain capacity up to the end. But most of us who live to our late 80s will require some degree of being looked after, and if we experience cognitive decline, may well end up regressing to toddlerdom.
Both MIL and FIL were fantastically independent up to their last year or so, then experienced rapid cognitive decline. It was heart breaking to see and meant the family had to push then to a)accept more support and b)recognise that they had to give up driving.
We would never have got involved in their decision making in the past, but there came a point where "respecting their wishes" would have been dangerous for them and for other people. We didn't force them to do anything but did put pressure on, particularly about the driving.
Shakespeare wrote about the 7th age of man being a "second childishness" and I was reminded of that at the very end with MIL. I was very happy to be able to spend time with her and care for her in her last months, but it did remind me of looking after a much loved and very determined toddler.