Maybe another thread could be, "Honey/Dude, you have to speed up in order to merge into oncoming traffic. You can not enter the highway safely from a dead stop."
That also is a problem.
I wonder why some modern cars perform at level which only a few years ago could be achieved only by race cars, yet so many drivers refuse to push firmly enough on the loud pedal to merge safely onto freeways thereby creating problems for everyone.
A few years ago, I rode with my brother. He was going too slowly on the merging lane and constantly looking back, irritated because no one was letting him in. As he approached the end of the merging lane, he forced his way in, forcing other cars to slow down.
Once in Minneapolis, I was behind a car attempting to merge onto 694. Just as I and the drivers behind me were getting ready to accelerate, she hit the brakes even though the merging lane was about a full mile long!! So, I had to hit my brakes and behind me I heard, "screech, screech, screech."
Way back around 1957, just before the first freeway was opened in Minneapolis, there was instruction on TV showing how to merge properly. This is 53 years later and some people still haven't learned.
If I had my way, drivers would be re-tested every five years, with both a thorough written test and a thorough behind the wheel test. A driver failing the re-test would be given reasonable time to prepare for another test and after failing three or so times, would have his license revoked and have to start over as a learner. The basic problem is that few drivers take driving seriously; they give driving no more thought than loading the washing machine. The vast majority of drivers could easily enough pass a re-test if they made a point of keeping their knowledge current, paid attention to their driving, and made a point of driving properly. In addition to having re-tests, enforcement should be much more strict. I'm not talking about only enforcing the speed limit; using lanes properly, turning properly, signaling, following at a safe distance, not using a cell 'phone, and stopping at red lights are also important.