Housemates and roommates are typically unmarried young adults, including workers and students. It is not rare for middle-aged and elderly adults who are single, divorced, or widowed to have housemates. Married couples, however, typically discontinue living with roommates, especially when they have children. Those moving to another city or
another country may decide to look for a shared house or apartment to avoid
loneliness. Social changes such as the declining affordability of
home ownership and decreasing
marriage rates are reasons why people may choose to live with roommates. Despite this rise, shared housing is little researched. Roommates are a fairly common point of reference in Western culture. In the United States, most young adults spend at least a short part of their lives living with roommates after they leave their family's home. Very often this involves moving out of the home and to college, where the primary option for living is with a roommate. Therefore, many novels, movies, plays, and television programs employ roommates as a basic principle or a
plot device (such as the popular series
Friends or
The Big Bang Theory). Sharing a house or a flat is also very common in European countries such as France (French
colocation, corenting) or Germany (German
WG for
Wohngemeinschaft, living [together] community). Many websites are specialized in finding a flatmate. On the other hand, it is less common for people of any age to live with roommates in some countries, such as
Japan, where single-person one-room apartments are plentiful. There are many different forms of flat shares also, from the more established flat shares where the flatmate will get their own room that is furnished to "couch surfing" where people lend their sofa for a short period. Sharehome residents are typically unrelated to each other in that they generally come from different
families, although they may be composed of some
siblings and sometimes
single parents and their
children. Perhaps because of the
social cohesion required for their formation, sharehomes will often be composed of members of the same
peer group. For example,
university students who have relocated to a new area to commence a course of study often need to form a sharehome. Share housing often occurs in the 18–35 age bracket—during a life stage between leaving home and having children. Sharehome residents may have pre-existing
friendships or other
interpersonal relationships or they may form new relationships whilst living together. Many
universities in the United States require first-year students to live in on-campus residence halls, sharing a
dormitory room with a same-sex roommate. ==Popularity==