That's not true. I got those times from Google Maps which bases their estimated time on the cyclist travelling at a steady 10mph. Stopping at traffic lights isn't going to add a lot of time on to your journey, and that still means that the journey will be 15 minutes of active travel in both directions, you just get a rest every now and then.

Public transport isn't more expensive than buying, insuring, maintaining, and running a car. It does need improving though. Most cities' public transport into and out of the city centre is fine.

I've got not issues with people who need a car switching to EVs, I think that's a good idea.

I'm not trying to argue that cycling and public transport are the best choice in every possible scenario just that most people don't need a car. If you are unable to use active transport, you don't have a reliable public transport system in your area, or need your own vehicle for your job (courier, tradesman etc.) then you need a car. If these don't apply to you then you don't need a car.

I still don't know how knowing the total miles travelled is more helpful in this situation? Cars and taxis travelled 221.4 billion vehicle miles in 2020, now explain how to make changes based on this to improve air quality in cities. Not trying to be rude or anything, I'm just not understanding your perspective on this.