During the time that Glass Chip was unable to find her talent, she would always ride a scooter that would make up for something that she didn't have the ability to do, fly, so when she rode her scooter around town, she felt like she was flying. And she grew up around Propaganda, but somewhere inside her, it wasn't true and just a lie. Besides the Propaganda, she was unaware of how ponies were out in the real world so this day would be special.

I'm not going to go any further than this for now.

Inspired by this: https://www.youtube.com/watch?v=kwPOvhdZR7c

FYI, the big difference here is that in case with Chip, they weren't trying to strike fear into others, but hatred and that the ponies that were being used as Propaganda must be taken down. If you're wondering about anything, I'm not going to answer, sorry.