Is there a finite detail on the notion of growing up? I'm pretty sure I placed one on it. That when I reach a certain set of responsibility and social standings that I might be a grown up. Then manhood or something. Fuck both of those things. If you've done growing a person, stay the fuck away.
Sorry, being of a certain age dictates you have to deal with all the horrible shit that you say "it won't happen to me." That's probably all being an adult is is reacting and dealing with the fallout of all this shit. Going to work the next day after your friend violently murdered someone and quietly resigning from the position of your lives.