if you are transitioning from one skill/job to, say, software, you'll probably be over 30, and maybe over 40.
just tell me this: who would hire an aging programmer, just starting out, when you can more easily abuse immigrants and h1b's who are young and will work overtime for free and deny the value of a personal life?
we have a major problem with companies not being socially responsible. they don't care that an aging population is being wholesale REJECTED by corporate america and worse than that, local US born and raised citizens are second class, now; with imported labor or outsourced labor being first class.
an idea: give tax incentives or other incentives for companies that go out of their way to hire locals/americans and even bigger bonuses to companies that go out of their way to hire older (over 35, cough) people. not saying you punish those companies who don't; but you give them extra benefits so as to motivate them.
companies only look out for their bottom line. they would sell their mother into slavery for a higher share price. the only way to keep a balance of social responsibility and prosperity is to give incentives, to guide better behavior.
(I'm over 50, have been looking for work for a while now, and I'm getting nothing; no interviews and certainly no offers. I have a lot of experience and a good work ethic, but it does no one any good if the companies routinely dismiss anyone with more than 2 pages of resume experience, since they are seen as 'too expensive' to hire).