Not only is it completely possible, it may actually be
better for some people (or most?).
The reason I say this, is because most kids (not all) out of high school are
just that; kids.
They don't have a freakin clue as to what they want to do, how to do it, or
anything associated with having lived and gained personal life experience.
By starting later in life you may have gained (or should have) an entire string
of common sense and practicalities of having to live your life.
Basically, if you're motivated enough to work your job, be it the airlines, or
the hamburger joint down the road, you can fullfill your educational goals.
At that point, getting your degree is simply a function of how much time you
are willing/able to put into it and how much money you have to cover the
expense(s).
-Perpetual