LVIV, Ukraine( Reuters)-When Russian jets roared low over her town and the bombing grew unbearable, Liudmila Kravtsova packed a small bag and fled by train to safer western Ukraine. The carriage was packed with women and children.... So was another segment of Ukrainian society. Kravtsova, a 67-year-old retired accountant, said she was one of only three older passengers.... " Old people are staying put with only the war for company," she said. One in four people in Ukraine are 60 or older, acco