- More people on buses and trains helps to reduce traffic and congestion in inner cities.
- Fewer cars on the road mean fewer cars producing harmful pollutants and greenhouse gases
- Less traffic means shorter commute times and less time spent running engines wastefully in traffic
- When a population is more reliant upon public transport it becomes much easier to transition the transport sector to electric vehicles, simultaneously reducing our carbon footprint and air pollution
- A less car-centric culture could ultimately give cities back to pedestrians.
http://www.thejist.co.uk/politics/free-public-transport-for-under-25s-could-transform-a-generation/?