Earlier quoted context omitted.
I think limited rights for old people are like limited rights for children: justified because there is cognitive decline, and every individual (except children who tragically die young) gets to live some life with full rights. The biggest problem is that it’s depressing. A child gets to look forward to growing up and having full rights, an old person is already looking forward to declining and dying and the loss of r…
Children are legally differentiated from adults purely based on age, not some formal verification. You get extra rights and obligations at 18, that’s a very objective criterion. Declaring someone mentally unfit is anything but objective and it’s very ripe for abuse.
Often but not always: https://en.wikipedia.org/wiki/Emancipation_of_minors