In all honesty, probably the Glen Campbell TV show first started me down the path. I got a Silvertone acoustic when I was 10 in 1968 and I remember the first batch of songs other than 'She'll Be Coming 'Round The Mountain", "Home On The Range" etc. that I learned were "Gentle On My Mind", "Galveston", and a couple more.
But the next year in 6th Grade I joined a band, got an electric, and started playing the real stuff--Creedence, Beatles, Stones, etc.
The guitar was much "cooler" in upper school than the violin I had been taking lessons for since I was 6.