[Nexxxeh]

The government already has a say in what happens to one's corpse after death. There are rules and regulations, and procedures to deal with the corpse in the lack of other instructions or interventions.

If someone keels over and dies on the streets in Paris, the body doesn't just get left there to rot.

If there are arrangements in place, or if the next of kin get involved then those determine what happens to the corpse. Otherwise, it's the "default" option. I assume that's cremation, but I've not checked.

It takes a sensible default for organ donation too, and it takes explicit action to change the default. In the lack of explicit instructions otherwise from the deceased, they do the sensible default with regards to organ donation.