Just after she turned 70, Leslie Botts became a lifeguard.
Botts, a longtime swimmer from Austin, was looking for a way to stay active while supplementing her income. After retiring in 2007 from her 30-year career as a special-education teacher, she taught yoga at a Caribbean resort for a year, then worked as a substitute high school teacher, making just over $10 an hour. But she was frustrated by the unpredictable hours and low pay.