Who is considered Asian?

Why is it that people generally only consider people from countries such as China, Japan, Korea, Vietnam etc to be Asian? Because technically speaking, India, Pakistan, Bangladesh, Tajikistan, Uzbekistan etc are all part of Asia, so why are people from these countries not considered Asian by the general public?
Poll

Are people from countries such as India, Pakistan, Bangladesh, Iran, Tajikistan and Uzbekistan truly Asian/

Results
No discussions yet