Caregiving | Home & Family | Your LifeBy Mary Hickey Caring for an older family member is costly to both families and employers — and it’s time for the workplace to develop policies to help people juggle the competing demands of work and caregiving responsibilities. That was the bottom-line message from Cheryl Matheis, senior vice president of policy for AARP, who was interviewed on National Public Radio this morning as part of an ongoing series on caregiving. “When people have to leave their jobs [to care for …