The number of people aged 65 and older in the United States is expected to nearly double by 2050. As Baby Boomers and seniors struggle with the lack of independence and social isolation that often comes with growing older, young people struggle to maintain social ties as they juggle work and family. That's why a growing number of people are choosing to live in intentional intergenerational communities in a housing model known as cohousing that was pioneered in Denmark. PBS NewsHour Weekend Correspondent Saskia de Melker visits two communities - one in Denmark, one in the United States - to see what living in a cohousing community means for residents of different ages.