I thought it was weird but I was giving you the benefit of the doubt. At first I was thinking does Spain call it’s currency pesos but then I noticed you specified Mexican pesos. My mind then jumped to the conflicts that are ongoing in central America.

The US turns down tons of refugees seeking shelter and the Mexican government offers virtually no help either. I thought it was possible France took refugees like we do with certain conflicts half way across the world. Often depends on how much the general population cares and if our military is active in the area.

The American dollar is the only currency accepted in America but France being a European country would be more accustomed to accepting foreign currency if needed I assume.

All speculation but forgive me for my arrogance.