The tiny house movement refers to people who are willingly moving into smaller places to save money.
I have seen those on television, I'm not sure I could be part of that movement myself.
Yes many people love their space.  The average size of a home in America grew from 1978 to 2007 despite the family size decreasing.
I totally want more space! hahah My house is small for a family of three I think.
Although there is no clear definition to define tiny house it is generally accepted to be an undersized residential structure.