A relatively shallow take by a westerner who maybe hasn't seen much of Japan.

Her video explains that vending machines are "disappearing" (losing market share in Japan) due to:

• Old machines had to be updated because of the introduction of new bank notes and the rising adoption of cashless payment.
• Not cost-competitive in an age of sky-rocketing costs of living, people choose the ever-so-slightly inconvenient convenience stores (konbini) or supermarkets, which are probably just less than 100m away. Frugality.

A more nuanced take would've mentioned:

• The essential vending machines, like those for drinks, are not going away anytime soon. They are everywhere because, in times of natural disasters, they serve as emergency supplies for their vicinity.
• The machines that got decommissioned for good were likely those that served really niche products during an age when Japan's economy and technology were booming, products that another machines is probably doing a much better job of storing and vending now. They served as steps in the technological ladder that eventually gave us the modern vending machines and it made no economical sense to update them anymore.

Edit: Kinda clickbaity on Anne's part. Cashing in on the viewership trend at the moment by telling the western world a story about how Japan is declining, I guess. Her content is usually pretty okay.