Life is funny.
No one gets a handbook upon turning 18, complete with all the rules they’ll need to memorize and competencies they’ll need to acquire.
Somehow you’re just supposed to know that you should have more money coming in than going out, and you shouldn’t wear a fuzzy orange sweater to a job interview.
Business Insider put together a handbook of sorts, which lists many skills you’ll need to survive as an adult in the modern world.