Older Americans who need to unretire are starting businesses, earning $15 an hour, or struggling to find anything at all

Sharon Tagle thought her finances were in order when she retired seven years ago. However, she recently returned work. In December, the 68-year-old got a job at Home Depot as a cashier working 20 hours a week. She said her concerns about inflation and a failed home sale influenced her decision. She earns $15 hourly and expects to work for the next few months, longer if her financial conditions remain tight. "I'm sorry that I left my job as soon as I did, but things were getting to me, and I just didn't want to work anymore," Tagle, who lives...