free/cheap cams for kids group

Very interesting. But I have a stupid question. What is the advantage of black/white disposable above vs the more common color disposables?

And some my own opinion:

I think disposable cameras are bad for the environment. Even though the cameras are recycled, they are gross waste of resources. Think about the energy and materials required to manufacture, process, transport and recycle the cameras. And then there are the chemicals used for developing photos and printing photos (including the ones not worth keeping but printed anyway).

Reuse (old camera) is better than recycle.

Thanks for reading!