Currently a student at the Catholic University of Korea Graduate School of Social Work, Yoo is very active in philanthropic efforts. He joins charity photo shoots and auctions, has helped set up a kindergarten in Nepal, has donated to Haiti earthquake relief, has donated funds for building schools in Myanmar, has joined a charity photo shoot to benefit victims of facial burns, has volunteered in a campaign to deliver free lunches to underprivileged people, has promoted the adoption of abandoned dogs, and has campaigned against domestic violence towards migrant wives. His advocacies are World Vision, Compassion Korea, DAIL Community, Social Welfare Society Inc., YWCA of Korea, Nanum House of Sharing and Korean Association of Cinematheques.