She resides in an assisted living facility on the memory care unit. Mom is age 90, has heart problems, dementia, and has small fractures in her back. She cannot undergo surgery due to these health issues per her doctor. She is a risk person to fall as she uses a walker and her gait is unsteady. If she were to fall and break a hip, she would have to lay in her bed and eventually die as she cannot have surgery. I have two sisters who insist on taking her outside to go eat at a restaurant every week. I have kindly told them not to take her out as her chances of falling are great due to holes in cement, sidewalks, stones, etc. where she could easily fall. They refuse to listen to me. The assisted living facility say they cannot refuse family members from taking her out, even though I have POA. I am trying to keep my mom as healthy as possible and safe. Is there anything I can do to protect her?