Peer-to-peer flea market trading apps, frequently used by young people in Japan, are becoming increasingly popular with the older population as they look to clear away a life's worth of clutter in their latter years.

Once considered taboo, end-of-life preparations, known as shūkatsu, are being embraced by more and more seniors who live alone and have no one to assist them and no children.

"Shūkatsu" has become a buzzword, and seminars offering advice on everything from investments and inheritance to making funeral arrangements have become commonplace.