Sending prayers for your family Jon It's a tough situation to go through
Personally for me if she wants a drink let her have it. I know if I get to that age does it really matter.
If that is something she wants why deny her a little enjoyment. The reasons are a few. First off when we found her on the floor and she was taken to the hospital (even before we got there) one of the diagnosis from the doctors was alcohol induced dimensia. They had one of the treatments written down as alcohol withdrawl. Plus no alcohol is allowed in there so it would be me driving her around to get it and I'm not going to do that. If it comes to that point you're more then welcome to come up and take her out John. btw, Dad was in there today and she started mentioning vodka, that and brandy are what she was drinking, to what extent don't know but we found several quart bottles of each in her apartment.
When you are in a difficult situation and wonder where God is; remember the Teacher is always quiet during the test.