In addition to the social problems, which are nontrivial, there are tons of little bureaucratic friction points to living in community houses that people may not have even considered.
I know one community house of > 10 people in California, exactly the type the author says they want, which kept getting fines from PG&E because they were using too much electricity, even though this was solely due to the house size and on a per-person basis they used much less than people living in single-family houses thanks to resource sharing. A policy intended to encourage energy efficiency ended up punishing it instead. Landmines like this are all over the place.
I know one community house of > 10 people in California, exactly the type the author says they want, which kept getting fines from PG&E because they were using too much electricity, even though this was solely due to the house size and on a per-person basis they used much less than people living in single-family houses thanks to resource sharing. A policy intended to encourage energy efficiency ended up punishing it instead. Landmines like this are all over the place.