If you called it a disposable crib rather than a cardboard box I bet nobody would object.

Apparently, from the discussion above, some bright bulbs here have banned the boxes, due to a lack of legs.

Perhaps, the US version would need some nubs, or formed legs or other thing to come with the box...

Frankly, when my spouse and I first heard about this, we thought the idea was fantastic.

Define "go over well."

I suspect they might take it as endangering the baby’s wellbeing to save a few bucks. The baby industry has got quite the stranglehold on some people.

What people "take it as", and what facts are, are sometimes 2 very different things.

The baby box is a blessing for many families, and it's also much more than the box (which btw. is not a cheap piece of cardboard but comes complete with an insulated mattress and bedding made of high quality materials): there are clothes, diapers, hygienic goods, etc.

And last but not least, it's also a strong symbolic gesture: Society saying: "Don't worry, we got your back. You're not alone, we are all in this together, and we help each other."