Probably goes back to poor drivers Ed. My parents were really focused on making sure I was a good driver and they sent me to a drivers Ed course that was actually helpful, rather than just a "vehicle" to get my license. I imagine this isn't the case for everyone. I don't even think about using my turn signal. it's a habit. it's going to prevent me from getting into an accident as I'm telling those people behind me I'm switching lanes instead of just swrving out of nowhere.