Greetings--I just joined and this is my first post. My dad has PD and has recently moved to an assisted facility with institutional, short, hard carpet. He is used to wearing slip on moccasins, but, on this carpet, he says they "stick," making it even harder to walk. He does have the shuffling gait and drags his feet. So, I am interested in any advice on what kinds of shoes might help. Thanks so much!