The practice remains today in the system of adoption by which a man becomes a member of another family by marriage.was gradually adopted and widely accepted in the 14th century and on.When in doubt, always ask someone, preferably older than you, for suggestions. Most Japanese use the family name followed by san (Mr./Miss/Mrs.), sensei (literally, “teacher,” but used in addressing not only professors but also physicians, dentists, politicians), or the title of the person being addressed (e.g., Tanaka Kyoju / Professor Tanaka, Tanaka Bucho / Director Tanaka, Tanaka Gakucho / President Tanaka).
About one half of the young people indicated that they want to marry eventually, but are not concerned about the age at which they might marry.
Meanwhile, of the couples whose wives married at an age younger than 25, about 50 percent said that they had to because of a pregnancy.
[Source: Daishiro Inagaki, Asahi Shimbun, October 22, 2011] There were 720,417 marriages in Japan in 2005.
A 2005 census found that 47 percent of men and 32 percent of women in their early 30s are single.
According to a 2005 survey by the National Institute of Population, 87 to 90 percent of men and women between 18 and 34 said they want to get married someday, with many of those who were single saying they were single because they hadn’t found the right partner. and Tsuguo Shimazaki wrote in the Encyclopedia of Sexuality: Traditionally Japanese married by age 25, but this expectation is clearly waning.