Technically we're supposed to
Around here signalling is a sign of weakness. My dad taught me how to drive, and let's just say signalling was not emphasized in those lessons. I try to signal, but to be honest I feel kind of dumb signalling when it's pretty obvious where I'm going.
However, there are certain on ramps that are right next to statie hide outs. I ALWAYS signal then. I also always signal when my mom is in the car with me