I don't think that's happening, Dr. Susan. In fact, Mercury's initial post brought out dozens of young 'uns that had been registered but hadn't posted 'cos they thought that the threads were dominated by older age questions and issues.
The young un's agitated for a section of their own and won it. Yay! They can retreat there any time they want. But, have you noticed? A lot of the young ones are now posting regularly in the open threads, too.
So the young section has given them a little more confidence, which is good, and while discussing among themselves, they've also come out to interact with the rest of us more, too. Which is great!
You go, young beauties! No matter what you've got to say, plenty here want to hear it...