Seriously! Just examine all the vehicles that surround you on the road these days. I would guesstimate that one-half of the drivers today had very liberal instructors in drivers training. Then compound the problem by guessing again that 25% of that 50% don;t use their turn signals or brake fully at stop signs.
I'll be the contrarian.
We've all been in vehicles where the need to be elsewhere has sudden crept up. The need seems to increase as the proximity of the place we would rather be gets closer. When the place is in sight, all other considerations are discarded, including parking appropriately.
When you see a car barreling down the highway at 80mph with a kid in the back seat, it could be caused by an irresponsible parent, or I would offer, a 7 year old kid that "really" has to go to the bathroom