Having been an oldest child, and now the Dad of a teenage girl, I can tell you without a doubt, they are freaking out. But, all parents will (the good ones anyway) when they're oldest gets to that age, especially if it'* a girl.
You're both old enough, though, that you should be able to deal with it for another year or two and head off to college, or just move out and get on with your own lifes.
But, as long as she lives there (and for quite a while after), they're gonna do what they think is best for their baby girl. And, no matter how old she is, that'* still who she is to them. Their little baby girl....
1998 SE Midnight Blue Pearl
Gutted airbox, FRAM AirHog, removed MAF Screen, eBay clear corners, extended brake lights
I'm so much cooler online