I live around an hour away but my sister lives only 10 minutes away. My sister and I don't get along very well. I call my dad more than my sister to find out how he is doing. I order his groceries on line and have them delivered to his home. My sister doesn't do much even though she is the oldest of the siblings. My question is how often should my 95 year old father be personally looked in on. I call him often and see him as often as I can, but I have a job and my sister does not. Any advice would be appreciated. Thank you!