In Thailand, one of the reasons for this linguistic deterioration is the government's unofficial policy of promoting standard Thai - the medium of instruction in all schools.
the chances of survival are dependent on a number of factors. For example, the Kasong and Samre, with only 10 elderly speakers each, are thought to be beyond redemption. For other groups, geographical location plays a crucial role. In central Thailand, the Mons, surrounded by Thai speakers, are thought to be imminently at risk, although other Mons residing near the remote Thai-Burmese border are not.