@happyhedge
Neet (not in employment, education, or training) originally referred to young people (specifically those aged 16-24) who were neither employed nor receiving education or vocational training. In millennial Japan, the age range of the term "NEET" was expanded to include those aged 15-34. It became widely associated with the culture of "otaku" and "staying indoors," and for a long time, it was also associated with "staying at home."