Earthen floor and pets? Outside ok?

We are fixing to start building our earthbag house. I'm planning the floor right now and have a couple of questions.

1) Is it durable enough for pets? We have cats and dogs so it would be in a high traffic area. Is it easy to clean in case of bathroom accidents?

2) Might be stupid, but can we do an earthen floor outside? If it has a roof over it?

Any other advice/ideas would be great!