Prince William said in a recent interview that he believes his late mother Princess Diana would be "disappointed" by the lack of progress on homelessness since she championed the issue in her lifetime. "I think she would be disappointed that we are still no further on, in terms of tackling homelessness and preventing it, than when she was interested and involved in it," the Prince of Wales said in a video that will air on BBC One in the U.K. on Friday. The 40-year-old royal spoke to two people who have experienced homelessness during the video for homeless charity Groundswell ahead of Comic Relief’s Red Nose Day, an annual fundraising campaign. "My mother introduced me to the cause of homelessness from quite a young age, and I'm really glad she did," William told two people who had experienced homeless, adding that he wanted to speak to them to "learn" from their "lived experiences." "Homelessness is about not having a safe space - it's a very isolating life," a man named Miles told William during the podcast, according to the BBC.