3- Therefore, changes in cultural and life-style are the transition from traditional culture to modern culture, charcaterized by the transiting logic from single-style culture to multi-style culture. Diversified and individualized tendencies are not only specific characteristics of Vietnam but also common phenomena in all countries which are industrializing and modernizing. In general, this evenful process is occuring quickly and changing continuously. It is not only in appearance but in role, position in society. Such diversified manisfestions make the boundary between social goups less clear as in traditional society. In social sciences, they call it as surprising leap of mobile society and it creates much difficulty for indentifying individual.
Those changes are results of social justice that has been contributing to the development of self-motivation in each person, each social group, encouraging them to exploit oppotunity for improvement. As an inevitable result of social development, they speed up this process and also they have both possitive and negative effects. Since they are parts of social structure, such changes will be the mirror reflecting macro social chagnes. Their plentiful and diversified characteristics contributed to the identification of social changed of each country in recent time. In the situation of renewal, life-style difersification is neccessary and it would be considered as rule in any society. The problem is defining the level and evaluating political-social results, because this process has possitive factors beside its negative ones.