You can conscientiously object, you are not forced to go through it if you are not psychologically able to.

The point is that the law is guided by the people, not the other way round. If you have a selection of random people it should be a snapshot of society. They are presented with all the evidence and everything is explained thoroughly before they make a decision, and it can take weeks. I personally think this is far better than leaving it to some old man with outdated and conservative ideas, which is most judges here in the UK.