I recently discovered that there was such a plan for TER ("slow" regional trains) in France. https://www.ter.sncf.com/nouvelle-aquitaine/offres/cartes-abonneme

I recently discovered that there was such a plan for TER ("slow" regional trains) in France. https://www.ter.sncf.com/nouvelle-aquitaine/offres/cartes-abonnements/pass-jeune-ter-de-france https://www.ter.sncf.com/nouvelle-aquitaine/offres/cartes-ab... 29€/month, for july and august. Not sure if they offer it every year, or if that was a 2021 special. I also recently turned 26...