Our parents put up with our crazy childhood and teenage years, then we need to put up with their craziness when they're older! Hoarding is one of the things. They feel like they're losing everything so they hold onto the past! We need to gently persuade them that they will feel more free getting rid of things holding them to the past!
I was very proud of my Dad today. He is a hoarder of books and all reading material! He gladly said yes we can give away at least two thirds of his reading stuff!
We need to feel what they are going through and be gentle in getting rid of their things. If we stay connected with them they will need to be less attached to things and more into making new memories with their family!