Feel like an outlier to my very own family

I don't know why I feel like I don't gel with my own family. A good portion of my family, who are around my age of 20-30 are super into raves while I am not. Whenever there's always a family gathering like yesterday in Christmas, they just talk about raves and all the fun they have, talking about the drugs they have tried. Then there's me, I am not really into them and never went to one before. I'm more about going to the gym, and trying to up my education so I can get into a career I want, while also being into cars; owning a 2007 Mitsubishi Evolution 9 MR myself. The only person in my family that's within the age range that's also not into raves is my older sister, saying she would rather relax at home and be more productive. But still, I feel like considering my interests of trying to make myself physically fit and self-improvement and being into cars, just makes me feel like an outsider to a good portion of my relatives that are just into raves.