Thats interesting.I didn't take power of attorney, but I just completed a letter which my mum signed confirming that she wanted me to have authority to discuss and act on her behalf and had all correspondence sent to my house. Worked really well for us. With her bank accounts I went on as joint holder. Made things so much easier. After she died and I had to deal with probate, I already had all the paperwork, so it made that part a lot easier too. Hopefully you have plenty of time before that becomes a factor.
Some big decisions to make here.