Dogs in general require some degree of adapting the household to accommodate the dog. Senior dogs can also be a lot of work…no, they don’t chew everything they can get in their mouths, but bladder and bowel control can be a problem, plus arthritic joints may need extra care and maintenance.
All of the dogs I’ve had have made it to at least their early teens, and I had an American Cocker who soldiered on until age 21. This is when things can get expensive, and I think a lot of people don’t take that into consideration. My Cocker developed diabetes when he was 14, and my life literally revolved around managing his shots and diet. We (meaning dog lovers) make these adaptations willingly because we love them, but more than once I declined offers of holiday beach trips and the like because “I really can’t be taking out of town vacations until the dog dies”. It wasn’t so much that I couldn’t get care for him; my mom lived around the block and would often make an evening trip to give Oscar shots and dinner and take him out if I had to work late. But I would have worried if I couldn’t keep a constant eye on him.
I hope a good foster takes this poor pup in and can turn things around for her.