Yes, my mother would absolutely take care of her. I know I am anthropormorphizing, but I just think that my dog (whom I have also had since a puppy) would feel abandonded eventhough my mother would give her all the love in the world. And, then on top of that, my mom would have to emotionally deal with her eventual death and I hate the thought of that too. I do genuinely worry, though, that she would give herself a heart attack on the trip - she is a very very anxious dog.
I suppose I will talk to my vet and mention my concern to my mom to see if she is as willing as I assume she would be.
I always promised my dog that I would be with her until the end and do everything in my power to care for her and I cant help but feel that whatever decision I make is a betrayal.