Please check my Ideas for Writing Task 2

Please suggest me ideas for this task (both agree and disagree views would be cool!) and help me with a sample introduction.

Check my previous post as well if you haven't seen it!

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City centres are very crowded with cars. They often cause a great deal of pollution. Cars should be banned from all these centres.
To what extent do you agree or disagree with this?

Introduction:
Cars is one of the popular vehicles in city centres that are used by a majority of people today. However, they have raised many serious problems such as pollution and traffic congestion. In my view, I agree that they should be banned from all of these places.

Ideas:
Banning cars will reduce a great amount of CO2 emission, thus helps protect the environment and citizens's health.

It will reduce the amount of parking space needed -> more space for other interesting buildings such as shopping malls, amusement parks and so on -> make city centres more attractive.

Cars are valuable items and are often targeted by thieves -> banning cars could make them less likely to commit crimes -> reduce crime rates and make city centres safer for residents.

Conclusion:

In summary, since cars greatly contribute to the pollution and make city centres crowded, I believe governments should completely ban them from these areas.