@dani
Thank you. I try to cite my sources where I can. When we got the Mystery Egg, we fought our rival, entered the lab, and triggered a cutscene where we gave our rival a name. But then we just walked out without actually talking to the Prof. Elm, and most of us didn't realize the error until we tried to progress to Violet City and the path was still blocked. I can't blame them. I'm pretty sure that happened to me in one of my playthroughs back when the game was new.