Sure it isnt truly a "culture" but its the best way to define hip-hop. Rapping, breaking, djing, graffiti art yeah its all something you just do but, its far more deeper than that. The way you dress, the way you speak, what you listen to, your attitude, your behavior, your thoughts. Thats why people refer to it as a "culture", a movement, like your living hip-hop. Just like the hyphy movement, it has its own language, it has its own type of music, it has its own perspective, etc. some might even call it culture, Bay Area Hip-Hop culture. And you're right a few things in hip-hop is just something you do but, like KRS One said: "Rap is something you do. Hip-Hop is something you live." You dont have to agree with me, but lettin' you know where im commin from.