Now, Mr. Popularity… is just that
In 10 years, he’ll be Mr. Popularity with a bad job and a mustasche
So, fuck that socialite bullshit that they force upon you
Believe me, this is the exact course I’ve gone through

from Tonedeff (Ft. Anetra) – Children Lyrics on Rap Genius

Meaning

Having been through this all already, Tone is saying that popularity isn’t everything, even the most popular guy from school will end up with a bad life if he doesn’t apply himself or learn any skills.

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