Not enough younger people in this hobby...

That "breed" is already gone. They were "seat of the pants" mechanics, who understood the results of things they tried, that led them to other things to try.
That mind set is gone. Some of us still have it, but even the, so called, Young guns" in this hobby, are dinosaurs.
Today, you literally "dial in" a car from a tablet or lap top, or smart phone. You don't "build HP", you buy it.
In fact, it's a pretty safe bet call Funny Car, and Top Fuel racers ( cars and people) Dinosaurs, too.

Ever notice the 20 somethings at the track? Pro mods, Pro Stock, or anything that's front wheel drive. They really enjoy the high-tech stuff.

I respectfully disagree. Rare maybe, but certainly not gone.