Here’s an oddly relevant personal story. I was a Cubs fan when I was a kid, before the Rockies existed. Like many baseball fans, I watched them on WGN. Andre Dawson and Greg Maddux are still high on my all-time favorite player lists. I’m looking at a ball autographed by Dawson right now.
Once the Rockies arrived, they were my favorite team right away but it was a years-long transition for me to cheer only for them. I still wore Cubs hats into adulthood. As a kid, I used to switch between a Rockies hat and a Cubs hat at the games, depending on who was batting.