sentences:  The White Paper was criticised by opposition parties.Member of Parliament Low Thia Khiang of the Workers' Party of Singapore had criticised current measures of increasing the fertility rate, claiming that the high cost of living and lack of family and social support discouraged young couples from having babies.As for current immigration policies, he had noted that immigrants were a source of friction for Singaporeans and that an increased population would put more stress on the already strained urban infrastructure.