Now that you mention it, we weren't exactly swamped with attractive, 20-something female companionship, either. The locals were mostly in their 40's or older, it seemed.
In Berlin during the 1970s, the woman situation was bad for the German male 20 somethings too. A German friend of mine told that he was going to Thailand to get some “action.” Apparently he wasn’t the only one. So many Berlin bachelors wanted to R&R in Bangkok that once a week there was a direct flight from Berlin Tegel Airport to Bangkok filled with hot to trot young German males.
I told him that Bangkok was the R&R center for G.I.s during the Vietnam War. He replied, “Well from whom did you think we heard about Bangkok?”