She could just as easily left a nightclub with 3 scumbags in her home town. Where, isn't the problem. It's the age-old story. Girl is seen leaving with someone she just met and doesn't know.
EXACTLY.
There would probably be a difference in drinking laws. Also, when people are in a different country, they are far less able to read clues about another person's character. I think it is more likely for a drunk young girl on vacation to get fooled by men from a Carribean shantytown who have deliberately spiffed up and gone trolling near the tourist areas, than for the same girl to be fooled while sober by some thugs from a housing project near her parent's wealthy suburban home.