Canva | triffitt from Getty Images Signature and Elhenyo from Getty Images Signature Life insurance provider John Hancock just released its Longevity Preparedness Index, a survey to measure U.S. adults' ability to live well in older age. It reveals a sobering reality: Americans score just 60 out of 100 in readiness for longer lifespans, with finances a glaring weak spot. As life expectancy rises -- potentially doubling the 65+ population to 82 million by 2050 -- the survey found many face the risk of out ...