Statistically speaking, I'm 27, over-educated with a BA degree, single and not living with a partner, making an 25th percentile salary relatively to the US average. Saving less than I should of my disposable income but in the 10th percentile relatively to my peers due to my working professionally for 5.5 years while most of my other over-educated peers in other fields are still enrolled in post-graduate training. Working in IT and living in an over-priced metropolitan area.
Anecdotally speaking, I'm ambivalent about marriage and career advancement. Personal experiences have informed me that relationships are less about true love and unfailing commitment than being able to compromise, communicate and having the financial and mental wherewithal to deal with (inter)personal issues. Unlike my younger self, I'm less anxious about "coupling" and more keen working on myself and working out my bad habbits/addictions.
Personal experiences have also informed me that IT careers esp. if you're not working at a Fortune 500 company are quite transient. Programmers (maybe other professions as well?) are treated more as sub-contractors entities than tenured employees - meaning that the company will keep you around if you're contributing efficiently to the bottom-line and cut you without sentiment otherwise.
Whereas my younger self aspired to "apply to YC, work at Google," I'm less keen on the promises of potential prestige and fortune but focused more on the longer term of angling more for more domain specific positions (e.g., Computational Biologist vs. Software Engineer on Genomic Data Platform) and more work-life balance (summer hours, regular 9-5 schedule) to pursue my other hobbies outside of coding.
Everyone is very different but I'd love to hear what stage other young adults on HN are (not talking about the wide-eyed CS undergrad still dreaming about The Social Network), both statistically and anecdotally speaking.