Well, in response both to that and to claig's call for figures, how about this:
"The unemployment rate among 16 to 24-year-olds rose to 22% in the three months to October, up from 20.8% three months earlier.
Although this was the highest rate since formal records began in 1992, the ONS said it estimated that the rate had been higher in the mid-80s. "
The fact that youth unemployment is at record highs (excepting possibly the mid-80s which whatdoiknowanyway said was also hard) at the same time as fees have risen means, logically that students are going to need more money just at the time when it is harder to earn it legitimately. I'm sure part-time legitimate work is available - but probably not equally in all parts of the country. The faxt that poster x's dd got a job does not mean every other female students is guaranteed to be so fortunate. hence, the likelihood of larger numbers turning to supposedly 'easy' money in the sex trade.
It's not rocket science. Yes, you can blame the girls for being naive - that doesn't mean it doesn't happen though.