Cassidy has a much closer relationship with his son, 26-year-old Beau.
"He's just one of the best people you'll ever meet in your life, and it's that that I'm proud of," he said, confessing that Beau, whose mother is Sue Shifrin, has been one of the few people aware of his dementia diagnosis. "He's such a beautiful person."
"He knows that I'm just a little off," Cassidy explained. "Sometimes he cocks his head at me a little bit and goes, 'Dad do you remember?' and I say, 'No, I know I do, I remember.' He'll give me reminders once in a while."
Since his diagnosis, Cassidy has decided to stop touring as a musician, revealing that he wants to take the time to "enjoy life."