Probably when i started doing acid. Before acid, i didn't really think about shit at all. After, i wanted to learn how to do all kinds of shit. I eventually got to a point where i took too much acid that my tolerance spiked, and even a small amount gave me "bad trips" But the invent of the internet hellped me learn how to do many skills i would haver never learned.
To this day, i have friends that only know one skill. Some don't even have a skill. My best friend since middle school has been in and outm and currently in jail because he never learned a skill besides selling drugs.