BeatseatDevil .... I understand what you're saying, but in most societies (other than the Inuits), the parents care for the children until they grown, and the children care for the parents when they are of such an old age they can no longer care for themselves.
Personally, I do feel like it is the responsibility of the children, just as it was the responsibility of our parents when we were younger. But when abuse enters the picture, the natural order of things is disrupted, and I agree that there should be no expectation of any type of assistance.
My father was an elder, but he lived a double life and was very abusive at home. It took years for him to be found out, and in the end, he had nothing. Lost his wife, three kids, and the privelege of knowing his grandchildren. My sister and I use to joke that when he got old enough to enter a nursing home, we would find the dirtiest, nastiest, and most abusive nursing home we could find for him. (Yeah, we were bitter at the time.) Luckily, we will never have to face that reality. The asshole kicked the bucket at the young age of 65. The only relatives that went to his funeral were one sister and one of his daughters, who thought the JWs would think ill of her if she didn't.