The 6,700,000 remaining girls will most likely not date foreigners as few of them can accept a sexless relationship.Many Indonesian girls just prefer the Indonesian type of men.The law regarding interfaith marriage in Indonesia is complicated.
The equation non-virgin equates prostitutes is deeply entrenched in the Indonesian psyche unfortunately.
It is an abnormality on many levels that require some thinking outside the box.
For this reason, some Indonesian girls may feel that they should date an Indonesian guy because it is natural and less complicated. Among Indonesian girls who date foreigners, many used to be conventional.
For instance, their is a huge consensus among Indonesians that husbands are the head of the household and that the wives should serve them (over 95% - see page 30 here).
Dating or marrying a foreigner is rarely part of this narrative.