I think in France you can’t wash the eggs that are for sell directly

edit: yeah, found this info, and auto-translated :

Unwashed eggs protected by an invisible cuticle

In France and the European Union, Class A eggs sold in stores are neither washed nor disinfected. They retain a thin natural film—the cuticle—which seals the pores of the shell and limits bacterial entry. It is this “shield” that allows eggs to be kept at room temperature in stores.

In the United States, the approach is the opposite: eggs are cleaned and disinfected before sale. This washing removes the cuticle, leaving the shell more exposed and allowing germs to penetrate more easily. Consequently, refrigeration is mandatory throughout the supply chain there, from the farm to the refrigerated aisle.