My mother, who had a TBI 4 years ago, is acting like a defiant teenager. I am very concerned about her safety. She has significant memory and anger issues but appears to be a sweet, bright 83 year old widow. She is all of those things and wants to be independent which I respect. However, I do not think she should drive out of her small community (400 people) and she insists she is going to drive herself to her brother's house in another state by herself just to prove she can. I try very hard to keep the peace and will receive no help from siblings who do not live near us. I do not have POA yet because she functions so well on her own within her safety zones.Am I wrong to be concerned? How do I help her change her mind? She is very stubborn. Thank you !