Budget, price range desire, property type (SFR vs MFR, urban vs suburban, etc.), returns desire, etc. 

Depends on the location of the SFH...we have SFHs in a more urban area.

Finance, civil engineering, urban planning, real estate, construction management. 

Folks have done co-living all over and it works -- very high end and affordable, urban and suburban, six to a room and one to a room, ... the list goes on.   

The mentality of jumping to replace items is how most of society ends up living pay check to pay check.

How urban/suburban/rural is the area?

The motto I live by is if I'm not growing I'm dying, so regardless of being afraid I must do it, because the end result is.........I would like to enjoy a lifestyle of financial freedom and abundance, be young enough so that I can travel anytime, give to charity as I desire, buy whatever I choose, and build meaningful things that contribute to society.

Apparently society in general has accepted a reality you refuse to acknowledge.

Housing prices have increased above 2008 levels in some areas, but you are mainly seeing this in large urban cities.

places rents went to zero in the 08 crash  PHX  VEGAS  parts of FLA  parts of Atlanta  Detroit  and many other urban core areas.Central CA  inland empire..