She. Left. Her.
I want to give this Illinois mother the benefit of the doubt. I want to say that she had good intentions, and love for this daughter of hers, for at least 19 years. But I don't know if that is true, because the facts don't support that. Her mother didn't feel like caring for her any more, so she just dumped her. Dumped her, like an evil, foul person abandons a dog on the side of the road. She dumped her without any identification in another state. If this mother didn't want to deal with her kid as an adult, she could have done it differently.
Every state has programs to help adults with special needs. There are group homes, there are advocates, there are work programs, etc., all created just for special needs adults. The schools are responsible for beginning the conversation with parents about what needs to happen to make every special needs child as independent as they can be. I know this because I give parents a packet of information at their IEP meeting that has names of agencies and phone numbers and whether there is a waiting list. We start giving these packets out at age 12. My point is that the information, and the help, is there if you look for it.
This woman, who was blessed with a child, dumped that gift like she was trash. Right now I hate her a little for that.