Density is a function of zoning laws. They should just fix the zoning and make sure it has adequate density to support business.

I think citizens can vote with their dollar where they want to live. I hate suburbia, but I’m also not into super central downtown living. I want something in between. I’m ok with a townhouse and no backyard, as long as there’s a park nearby. I’m up for living with neighbours in a dense area, but only if I can get something for it, like shared neighbourhood amenities and small businesses in walking distance.

Montreal is a good example for North America. Not all of it is perfect, but a lot of it is mixed zoning.