To be noted : we have a extensive fast train system. As a user, I prefer to take the train. It’s faster, more confortable and overall less hassle. ( you get from city center to city center, no security check; you can move around, use your mobile hotspot or the train wifi ) The one use case is going from Paris to Toulouse for instance. It’s take a day of train. But even Paris-Marseille is less than 3h at this point. P…
Rennes-Toulouse is 10 hours by train, because it transits through Paris. It's 2 hours by plane. If you're in Paris, you can go anywhere easily. If you're not in Paris, some cities are hard to reach by train.
It’s infuriating. But oh well, that how the country has been design.