There are people that like to dispute the fact that grappling happens in self-defense scenarios, even with all the overwhelming evidence to the contrary. The following video is another example of how that type of thinking is wrong at times. Not every time, but a large amount of times it is provably so.

This is a longer video showing multiple situations, so fast forward to 6:37 and you can watch a very common criminal attacking type of occurrence. The bad guy is running from the cops and he jumps into a car stopped in a bank drive through lane. He gets in from the passenger side, but immediately moves over to the driver and tries to drive the car. This did not become an entangled fight simply due to the fact that the innocent victim 1) obviously did not know how to engage in such a fight, and 2) was too busy panicking. But the point I would like to drive home is this : IT WAS AT CONTACT DISTANCE THAT WAS DICTATED BY THE BAD GUY.

Bad guys move into contact or near contact distance far more often than otherwise.