WASHINGTON -- Anne Hare and her husband made a momentous decision three years ago: They would not have children. It's not that they don't like kids, she says. They simply don't want to alter the lifestyle they enjoy. "With kids, especially young kids, infants and toddlers, you really can't do the active stuff we like to do," said Hare, 43, a fitness program coordinator from Gainesville, Ga. Hare is among 26.7 million women aged 15 to 44 who are childless, a record number, according to new Census Bureau data from a June 2002 survey. They represent nearly 44 percent of...