in addition, French keyboards typically never include a key to enter these ligatures, which are only entered with "assisted" word processors with on-the-fly autocorrection
In that case, I'd recommend French people to use my Swedish Linux keyboard which *does* contain the Å ligature. For Swedish people, the Å ligature fills a much smaller usage; it's only used by Swedes who need to write documents in French, or use English transcriptions of ancient Greek names such as Ådipus.
Stefan