I'm not French, nor I live there, either, but a friend of mine bought a Hyundai i30 like 1-2 months ago under 12k€. There are plenty of second hand cars under 10k.
And I would say there are some excuses for ICE cars yet, for example virtually everybody in my country lives in an apartment, so unless charging stations are set up every 5 meters on all sidewalks (and in my neighborhood sidewalks are VERY narrow, some of them barely half a meter) most people are just bound to our polluting metal monsters.