Population Mobility and Prostitution in Southeast Asia 1980 14.0 13.4 Percent of population lifetime migrants 1970 29.9 29.8 1980 30.6 31.8 Percent of population who moved in last year 1981. Population Mobility and Prostitution in Southeast Asia – some are forced into prostitution and denied the rights to choose clients and – are denied the right of access to medical treatment and. While most countries of Southeast Asia resist the classification of prostitution as an industry, or sex work as an acceptable occupation in national.