While Gen Z dreams of an early retirement, they're not expecting it. Gen Z's ideal retirement age is 59, according to a new survey from Manulife John Hancock Retirement, an insurance company. Key Takeaways However, this generation, which includes people aged 18 to 28, actually expects to retire much later, at age 67. A similar trend occurs across generations—peoples' ideal retirement ages were younger than their expected retirement ages. Millennials, who are aged 29 to 43, want to retire at age 61, but don' ...