For myriad reasons, many seniors and retirees are staying in or jumping back into the job world. Money Talks News reports that by 2028, nearly a quarter of people 65 and older will be working. Reasons include staving off boredom and loneliness, saving for big expenses, paying off debt, or simple financial necessity. As “8 Signs That It’s Time for You to Unretire” explains, a job also has value for…