Young Americans Most Likely to Expect to Retire Before Age 55. About 30% of non-retired Americans in all age groups expect to retire before the age of 65. But 11% of 18- to 29-year-olds expect to retire before age 55, a much higher percentage than other groups.
The PhD takes another 2-6 years after the masters. There's no set length for a PhD in the US-it's very common for it to take 4+ years after the masters. It depends on the degree you want, the requirements of the program (those are not standard), you, your motivation, your project, your adviser, and your committee.o get a PhD, you can either do a masters first, or enroll in a PhD program after the bachelors, in which case you'd take the masters coursework before working on the PhD even if you don't get a masters degree specifically (this is called masters en route).
For persons who combine a master's degree and a PhD at the same institution, 5 years seems to be a typical length of time to completion. With the AuD degree being so new, it is currently unclear how long a PhD will take after the AuD or the length of time to complete a combined AuD/PhD (research degree).