I think that this is a testament to how much bitcoin has grown that not only your average citizens know and use bitcoin but also presidents. Bitcoin mass adaption might come a lot sooner than everyone initially thought.
It is a wake up call for other leaders that they also need to dive into Bitcoin. If they can't just invest on it quickly, they have to study on how it goes. Like these people, they've come to understand how it can impact their economies and there is no doubt that they've found a big thing about it. Now, they cannot ignore it anymore, the market capitalization has been increasing largely and this can contribute to their economies and as well as each of their citizens. There will be other known names to add to the few.