This guy knows what's up. But I'll add that the metaphor doesn't just apply to 20 something's.
If I knew then what I know now I wouldn't have wasted time at the bar. I'd just walk around Target with a puppy.
It's also influenced by your recent search history. I tried it and it didn't show the same thing. But if I search for all those things it will suggest those next time.
That's why those Google search memes are rarely true.