Um. It's not like the Romans "committing mass suicide because the world is ending." It's because infrastructure maybe be overrun and with so many people in a congested area it may be difficult to get anywhere. And police. fire, and other Secuity services maybe overwhelmed and unable to keep things orderly...
Shoot I was hoping I would be able to put a "I survived the 2024 solar eclipse" sticker next to my "Mayan calendar of 2012" and "Y2K".