It would be best if you didn't assume my intentions were malicious, Sacrosanct. In general that's a good assumption for most people, except for earnestly crappy ones.Yes, it is a great thing. Because it means the game is growing and the hobby is getting a lot more people in it, including this next generation. I think we all (grogs like myself included) agree on.
Thinking it's a great thing because grognards are becoming more of a minority? Seems a weird thing to celebrate when there are plenty of good reasons to celebrate that figure that isn't denigrating another group of people.
Though now I -am- curious why you think becoming a minority is denigrating by its very nature?
That said:. I do think it's great that the young now outnumber us older players. It means the hobby is not only thriving in a general sense, but is a massive hit with the younger generations (Younger Millennials, Gen Z, and so forth) and will keep going when we're gone. Do you remember when WotC bought out TSR back in '97 and it was a big deal? It was because the grognards of that time (many, but not all, of whom are still around) were the primary players of D&D. It was a big deal that the game didn't really appeal to the younger generations.
And then 3e hit. And MAN was it a hit. Younger people were picking up the game like no one's business back in 2000. I sure as shooting did when I was 20 years younger than I am, now!
But the older players still way outnumbered the younger ones. The game was doing better than it had in a decade or more, but it could've been soooo much better.
I think this is the first time since WotC bought D&D that over 50% of the playerbase was under 30! That's AMAZING. That's GREAT.
And I will happily advance into the minority if it means there's a lot more kids picking up the game we love and sharing it like we did. More kids than ever have.