I am a Deputy DA who is assigned to a Hardcore Gang unit.

As a general rule, the reason that educated jurors get excused is because defense attorneys are trained to exclude them. Statistically, these jurors are more likely to focus on the evidence and not be distracted by clever and not so clever defense tactics/arguments. In the vast majority of criminal prosecutions the evidence will favor the prosecution.

Fortunately, each side only gets 10 premptory challenges per case (20 in life cases). Thus, if larger numbers of educated jurors appear for jury service and do not seek to be excused, the more likely it is that the defense will exhaust their challenges before all of the educated jurors have been removed from the panel.

I encourage everyone to fullfill their jury service. In my career I have spoken to hundreds of jurors, almost all whom have expressed that on balance it had been a very worthwhile experience.