It may say that this is a major change in ASEAN history including Thailand such as the import, export, services and the investment of 10 countries in ASEAN by focusing on free trade. People in ASEAN can move to invest in other countries freely. However, only some kinds of products can set the specific tax rate in each country. Therefore, Thai people need to build their readiness in the competition with the populations of nine other countries. At the moment, only some parts of Thai people have started developing themselves with English skill and other languages in ASEAN including laws for supporting the ASEAN Community. Persons who can adapt with the change will get an advantage. We can see the example from the Soviet Union which collapsed and was separated into various countries at present because in the meantime the Soviet Union lacked the readiness in many aspects. Persons having the readiness in the laws and the investment processes will have an advantage and become the present economic and social leaders. Hence, Thai people needs to be enthusiastic and more aware of what they have to prepare for. Persons who do not prepare themselves to cope with the change will fall behind others who better prepare for the challenges.