Plus there is no bed bugs and pickpockets are an oddity outside of the most touristy stations.
Anyway, considering how awful it is to drive and park in Paris, you would have to be crazy to use a car instead of taking the train which is why nearly everyone does. Plus, with the mandatory employer subvention, it’s incredibly cheap at 44€ a month. The only credible alternative is biking which is indeed more and more popular.