I honestly think that if people do find out each others age, they there would be much hostility on this board.
For instance, insults will start flying, such as "you're too young to understand", or perhaps ''you being such and such age, cant comprehend what I am going through", etc etc.
Perhaps, it would be a better idea to leave it as it.
I also think that age shouldn't matter when you are having a civil debate. But many abuse the rules and inturn create a bad name for our religion.
I try to warn people by telling them but I guess I'm ignored most of the time
As for explaining to them? Well they do say patience is a virtue.
In time they will understand, Inshallah.