It’s good to know that in France, there is a required number of “working years” next to the retirement age. So for many people 64 is already not an option as they went to university for example. I often hear people argue that the French shouldn’t complain because in country X it’s age Y, but for a lot of French it’s already Y or >Y (I don’t know the exact details though as I’m not French, but have family there. So feel free to add or correct me)