[seangrant]

The fact that they're doing it all on one day at the same time implies it's mostly about the PR

[psychometry]

Or it's simply easier to coordinate that way. Plus it makes it obvious whether a franchise/branch isn't complying with the closing.

[kittiepryde]

How did you come to that conclusion? I am unsure about your line of logic here.

[seangrant]

Why would they shut down all their locations at once, losing hundreds of thousands in income, if not for the media and social attention it would receive?

Simply put, why close business when these trainings can be done staggered or off store hours? That's my line of thinking.