I didn't bother trying to evolve my Pikachu as a kid because of the anime nostalgia factor. I thought Raichu was a jerk cuz of that one anime short (the one before the first movie if I recall), but now, Raichu is one of my favorites. I also really doubt I knew how to evolve Pokemon with stones, though I doubt I had any Pokemon like that on my team at the time. I might have had a Kadabra since I was never able to catch one in Sapphire as a kid, but I don't remember.
Please note this was around the time Black & White had come out (when I was in middle school) because when I first got the games, I was barely able to play Pokemon due to my poor reading ability at the time, hence I almost certainly never made it past Brock in Yellow.