Hmmm, I take it you live in a city? You may not need anything other than a train or bike but other people have different needs.

So I actually live in a small town of 800 people somewhere in Europe. I can take the train if i need to get anywhere further than is comfortable by bike.

I understand that's not currently the case in a lot of the world, which is why I think cars need to be banned eventually, not right now.

That's fair, although instead of banning them I'd prefer to just have better alternatives that people naturally transition to. Cars are certainly not a very efficient mode of transport.