It sounds like an AirBnB safety measure, not something related to the host or location. The host should not get a copy of your documents but AirBnB will indeed keep it on file. As far as I know, it is not legally required in Paris, though (and I couldn't find anything suggesting that is is on paris.fr or service-public.fr).

When there is a requirement to collect such a document (e.g. in Italy), hosts typically ask you to upload a copy on a separate system or take a picture of your ID when you arrive and AirBnB is not involved.

As far as I know, it is not legally required in Paris and I couldn't find anything suggesting that it is on paris.fr or service-public.fr. From your description, it sounds like an AirBnB safety measure, not something related to the host or location. In that case, the host should not get a copy of your documents but AirBnB will indeed keep it on file. You can request it to be deleted but only after your stay.

When there is a requirement to collect such a document (e.g. in Italy), hosts typically ask you to upload a copy on a separate system or take a picture of your ID when you arrive. That has been my experience for multiple rentals in Italy (both on AirBnB and dealing directly with hosts) and I don't think AirBnB offers to do it for the hosts.

Note that, rightly or wrongly, identity theft seems to be less of a concern in Europe than the US and it is in fact relatively common for various apps or services to require a copy of your ID (e.g. car rental and other mobility apps, airlines, or banking and financial apps).

It sounds like an AirBnB safety measure, not something related to the host or location. The host should not get a copy of your documents but AirBnB will indeed keep it on file. As far as I know, it is not legally required in Paris, though (and I couldn't find anything suggesting that on paris.fr or service-public.fr).

When there is a requirement to collect such a document (e.g. in Italy), hosts typically ask you to upload a copy on a separate system or take a picture of your ID when you arrive and AirBnB is not involved.

It sounds like an AirBnB safety measure, not something related to the host or location. The host should not get a copy of your documents but AirBnB will indeed keep it on file. As far as I know, it is not legally required in Paris, though (and I couldn't find anything suggesting that is is on paris.fr or service-public.fr).

When there is a requirement to collect such a document (e.g. in Italy), hosts typically ask you to upload a copy on a separate system or take a picture of your ID when you arrive and AirBnB is not involved.