because as much as I love BYU, I also don't want to stop and chat with every rando BYU fan. Those two places just have way too many BYU fans, it gets to be annoying. Whereas wearing it in Europe, its kind of cool to come across other BYU fans. Or around where I live (not in Utah). Disneyland and cruise ships are no-gos for me wearing BYU gear though.