The problem is the recidivism rate, which range from 13% to 77%, depending on the study and other factors.
That is higher than other crimes.
The fact he is in a wheelchair has nothing to do with it.
The fact he was mentally younger had nothing to do with it.
The fact he only got caught once means a few things: possibly he didn't do it again, or he did and didn't get caught and didn't turn himself in.
While exposing himself is less physically damaging to a child, it is still mentally damaging, or could be.
If there was a convicted sex offender in my neighborhood, I would not hesistate to put up signs.
The best thing would have been for him to never pull his thingie out in front of children.
LOL. Ain't it the truth.