They aren't building mixed use because the residents do not want mixed use. Persuade people to want mixed use, rather than trying to force it down the throats

They aren't building mixed use because the residents do not want mixed use. Persuade people to want mixed use, rather than trying to force it down the throats of home owners, and you will have much better results. Developers are perfectly happy to deliver want buyers want. If you want better cities, have a population of people who want better cities. If the city you live in is not good enough, first try persuading your peers, and if that does not work, go somewhere more like minded. It is not an excuse to cripple everyone in this trap of zoning and regulation that has stunted growth in almost every sector across the entire country.