[YarickR2]

OMG . Not personal, but you're delusional and/or straight up lying. Denser cities are more enjoyable to live ? Wrong. Denser cities safer for children to play outside ? Wrong. Cities are loud because of cars ? With all that increased density you will have your surroundings much noisier when it hurts most - at the end of the day, when everyone is back from the job, and having a good time at home. Loud music, celebrations, brawls, arguments, etc. No, cramping more people in the same space will not this space more livable; ask Chinese .

[cardanome]

I don't get why I am getting such emotional responses.

Most of the noise in cities comes from cars, that is a fact. Even dense cities can be fairly quiet. I suggest watching this video: https://www.youtube.com/watch?v=CTV-wwszGw8

Plus China has probably not the best building codes, the problem can be further improved by having proper sound isolation in homes.

Dense cities mean you will have everything in walking distance. There will be much more space for parks and other areas of recreation.