I believe that defendants should be found guilty beyond reasonable doubt to be convicted. Here's why.
There are a lot of false criminal accusations going around, where an innocent person gets charged with a large crime.
In these cases, there is no evidence, no witnesses, just 2 people sharing different stories, one of which is false. Yet, the defendant, who is telling the truth about being innocent, gets found guilty.
This happens more so in juvenile cases, due to the fact that there is no jury in juvenile courts.
Imagine a 12-13 year old getting charged with murder, and there is absolutely no proof whatsoever, but the judge finds them guilty, convicts them, and locks them up for 4 years. Imagine how that would affect their life.
Innocent people are suffering because they get convicted with no reasoning.
This is why I believe they need to be found guilty beyond a reasonable doubt before being convicted.
I hope this helps, and have a nice day!
