There’s no doubt the number of retirees in the United States is going up. For one, the baby boomers or those who are from 52 to 70 years old now make up more than 73 million of the population. Members of Generation X, meanwhile, who were born from 1965 to 1981, are about 55 million. Within 10 to 15 years, they will also be on the verge of retirement.