I have no issues as long as the device was not changed after it was sold.

Being able to disable the light was a feature, now it is not. I likely would have not bought these if the ability to disable the light was not a shipping feature.

And I would really not care if all new devices being activated did not have this feature. But I do care that my devices will stop working one way and start working another way.

Pretty sure that's by law in Japan.

As far as I can tell, it's merely convention and not the law to have this sound in Japan.

Here’s an article that seems to explain this better. Not sure if it is accurate, but I think it is. TLDR; it is a carrier requirement for the market. Not a law, but still a required feature.

https://articles.inqk.net/2018/02/09/japan-iphone-shutter.ht...

It’s by law in Japan.

I don't think it's the law: it's just something that carriers will ask for before selling the phone.