Daycare/Kindergarten is already free across the country for all children starting at 3 years old.

My information might be biased towards the greater Kanto area (Tokyo/Yokohama), but I’m not aware of anybody paying less then 20000 Yen (a little over $100 USD I guess) per month per child for a place in a public daycare (can be more than double, depending on the area/daycare, and much more for private ones).

It’s much more complicated, though. You can receive various support money from the state/prefecture/city, but it’s usually less than what you have to pay. And you’re not guaranteed a place, and the waiting list cam be long (especially in highly populated areas in Tokyo).

They what and what?? Generally the Omada-stack devices are just on-premises hardware that you control. If you enable automatic firmware updates, then yeah, “if they push a bad update” and all (similar to a Linux distro with auto updates enabled). To improve operations, and enable certain features, there is the “cloud-based controller” software (appliance), which is named weirdly, because it generally does not live in the cloud - you can self-host on-premises, though its core software component is a black box and not (F)OSS (also available as an actual hardware appliance). There have been instances of the devices “phoning home”, though you might be able to limit that to some extent with firewall rules.