Almost every person I know who has had a baby girl has made a comment along the lines of 'She's not going anywhere until she's 25' or 'If any boys come knocking I'm going to be there checking them out'.
To be fair, I'd want to meet DS's girlfriends too.
But it's disingenuous to pretend that both genders face the same problems and risks for the sake of "equality".
Sexual assault with a girl is just really hard to take to court or have police take seriously. If you get raped by your boyfriend you've been dating a while, it's hard to prove and in all likely hood will never make it to court.
It's not that girls are more vulnerable, it's that girls don't have the same legal protection and justice. If a boy gets punched, it's black and white case of assault and something will likely be done about it, a boy will get closure, he won't be blamed by society, and he won't have his credibility ripped to shreds in court in front of an audience. In short, he'll be able to feel vindicated and move on. Girls don't always get that, even with a supportive family, who knows how their circle of friends will take it.
So yes, I will worry about my daughter more than my son in the dating arena, and I will most likely make damn sure that her boyfriend is a quality person. We've come a long way with laws pertaining to rape, there's a new law that you can't ask what the girl was wearing and any intoxication means you're unable to consent. But you see things like Stubenville, and we've got a hell of a long way to come. There was a girl that was kicked out of college for reporting a rape because the police officer found out she knew the boy on FB and told the school she filed a false report (she didn't, she filed a lawsuit and last I check the school settled and she enrolled elsewhere).
Until the law starts taking sexual assault more seriously, I will worry about my daughter more than a son in the dating arena. But I also hope that as a parent I have done my job correctly in teaching her about enthusiastic consent and arming her with the confidence she needs to say no or get out of a bad situation.