My parents are getting old and I have an older brother who is nonverbal autistic. I never really cared for him as growing up around an irrational screaming giant baby was hell and he strained my parents' lives socially emotionally and financially, and caused me to be deprived of attention growing up. But he's lived in care homes for most of his life and my parents are the only people who visit him and care that he even exists. As I get older I am seeing the prospect of taking him on as a responsibility of my own and there's a nagging feeling that I should be my brother's keeper. That said I don't think he cares when I visit or see him in general, so I'm wondering to what extent I should even be involved with him anymore. His life right now until his death will just be in a care home, he has everything provided for and paid for. Deep down I really don't care to make him my problem as well, as I have been recently diagnosed with aspergers aka high functioning autism too, I have enough of a hard time tard-wrangling myself. What should I do?