Look, college-aged people are adults. I really hate the tendency to deny people - especially young college women - agency. Plenty of young college-aged women aren't even in college, and at 18 have full legal and economic responsibility for their own lives. It's doubly disturbing to expressly advocate for laws based on the idea that they would "sometimes honored in the breach more than the observance." Laws which are arbitrarily enforced open up the possibility for abusive and targeted enforcement. They're bad laws.
More than that, most college aged men and women have sex, and some of them probably like taking naughty pictures of their partners.