The girls are willing participants so I don't know if the author is correct with the whole 'serving it up thing'.
This is all just "women are shy, innocent flowers getting plucked by mean, wolfish, men."
It's related to the feminist "all sex is rape" nonsense.
Going back to the in loco parentis of the 1950's in colleges is silly. You hit 18, you are an adult. Deal with the consequences of your actions. If a boy breaks your heart, tough nooggies. If you get knocked up, deal with the consequences. If you get an STD, it's your fault.
When kids turn 18, they are responsible for their own actions.