I look at it like this. Say there's a teacher at your local primary school. You hear from your neighbour that he's touched up her son. The next week, you hear from your cousin that the same teacher molested her son. And the next day, you hear from a former student, who's now an adult, who tells you the same teacher molested him when he was a kid.
Your son tells you that he's been invited over to this teacher's house for 1-on-1, special tuition. Do you let him go?
I'd hope your answer would be no. Pedophiles have patterns of behaviour. Rarely do they offend only once. It's the corroborating testimonies from independent people that gives you all the evidence you need.
In the case of George Pell, there are numerous, similar sounding stories from multiple sources. The forced sex with the choirboys he's been convicted of in Melbourne. The indecent grabbing of genitals in the swimming pool at Ballarat. The interest he's shown in the change rooms to make sure boys dry their genitals while he watched. The incident incident in Torquay where he stood naked in a change room in from of young boys for a lengthy period of time, and had to be told by Les Tyack, "I know what you're doing George. Clear out or I'll report this to the police."
We as non jurors, are allowed to weigh up all the independent evidence, the eerily similar stories from different parts of the state. You can form your personal opinion on that. In a court of law, the restrictions of what can be considered are extremely different. Very relevant evidence can be stricken, just because the judge said so. Other similar cases and testimonies can't be considered. The verdict could be overturned on appeal due to a technicality. And that's just how our legal system works. And that makes sense if the outcome is to imprison someone, you need extreme rigor in the process.
But as a member of the public who isn't a juror, you should consider the wider evidence you have available. Pedophiles have a track record supported by the testimonies of their victims. If you still conclude that George did nothing, then by all means, let your son go over to the teacher's house for 1-on-1, special tuition.