yesterday I got some replies where people told me that in modern society #cars are required.

that may be. to a certain point. BUT
- not to the extent they are used right now!
- it is not required to build massive, tank-like SUV's that take up lots of space and pollute the world more, use up more resources
- cars could be much more effective and use less energy as they do. cars could be smaller, lighter and slower.
- it is not required to reserve as much space in cities for cars as is the case now, cities have public transport
- cars and fuel should be made more expensive, with support for ppl (disabled ppl) who really need them.