More Families Bringing the Generations under One Roof By Tim Grant RISMEDIA, Tuesday, February 24, 2015— (TNS)—At 80 years old, Jack Beiber loves having his family back under one roof. His two grown daughters help buy groceries and cook meals. His two granddaughters—ages 15 and 13—and a 27-year-old grandson are responsible for household chores such