For people to choose multifamily housing then we really need to address soundproofing

One of the benefits of Twitter is that you can peek into the world of others who have an entirely different worldview.  Allows you to see commonalities and where there are actual real differences.

i have exactly one housing opinion and that it's if you really want to sell people on multifamily housing (which you should!) then we really gotta address soundproofing in every single building

— laissez lesbian temps rouler (@sssabriiiinaaa) February 19, 2022

LLTR makes a sensible point.  You can see the avalanche of endorsements and horror stories in the replies.  What do people seek in housing.  Privacy is certainly one aspect and part of privacy is to neither hear, nor be heard by, one's neighbors.  Does the housing stock (building code) achieve that?

The left is generally very enthusiastic about multi-unit housing and very anti-single family housing.  But the housing stock quality, though varying by jurisdiction, often sucks in multi-unit housing.  Noise is a big issue in many places, as is insulation, cost per square foot, etc.  For most people, most the time, and to the profound disappointment of left leaning urban planners, the optimum achievement of multiple goals is almost always single-family neighborhoods.

This issue of multi-unit housing is similar to public transportation.  Urban planners and left leaning ideologues are usually very vested in the importance of public transportation.  And despite decades of effort and hundreds of billions of dollars, fewer than 5% use public transportation for even the most basic function of commuting to work.  Given the time taken and the cost, public transportation is for 95% of the population a sub-optimal solution.  

Want more people to choose multi-unit housing?  Make it better, especially in terms of quiet and privacy.

Want more people to use public transportation?  Make it cleaner, faster, easier, and more comprehensive.

Of course, the challenge is that both approaches are prohibitively expensive.

The grandiose dreams are nice but it is the quotidian details which undermine those dreams.