I believe delayed employment is a major cause of delayed adulthood

‌Based on college-educated males
I am part of the class of '16 (entered university in 2016)
Retaking entrance exams once or twice, 21 months of military service, plus time for returning to school,
and about a year of job hunting is almost the standard.
Based on acquaintances who have landed jobs at large corporations or public enterprises or higher
The earliest is age 28
Many get jobs at 29
Some start their first job at 30
There are also cases like mine, where someone gets a job early, quits, prepares for civil service exams or a career change, and restarts their professional life around age 30
For men, the earliest they seem to get employed is around 28–29; it feels like almost no one with completed military service gets a job at 26–27
My seniors, juniors, and classmates go through various trials and errors, including sudden resignations, etc. After 2–3 years following graduation around age 30, they are either successfully changing jobs or looking for a long-term position to settle down
There are a few people around me who get married during this time
I was surprised to see more people around me than expected who have long-term relationships and marry early.
It seems like there are almost no cases where people settle down and have a stable professional life in their mid-to-late 20s..
It might be even more pronounced because I am a liberal arts major, though.
It would be ideal if starting professional life at 26–27, saving up a lump sum for 3–5 years, and marrying in the early 30s were the norm
But since people start their professional lives at 28–30, it feels like marriage and independence are being pushed back to the mid-30s.
The social status of a 30-year-old when I was 20 feels a bit different from the status of a 30-year-old today.
I am actually turning 31 soon, and since I took a 2-year break while preparing for civil service exams, my restart has been delayed, so I feel quite lost regarding when I will be able to save money and settle down lol