I don't see a problem with speculating and answering the questions. That said, my guess is that eventually, golf participation will nearly always revert to the mean, i.e. about 9% of the population participates (18% in Wisconsin and MN, etc.) It went up a bit with Arnie, Tiger, and COVID, and goes down with each recession.
The key to raising participation seems to be getting more minorities in the game, and of course, women. If you are a Hispanic kid (to name one group) you are probably less likely to be introduced to golf by a family member than if you are a white kid, just because previous generations haven't been golfers, and that is how most people do get introduced to the game. As the US gets more diversified, I would expect the natural participation rate to fall a bit, as "non traditional" golf groups make up more of the population, unless something is done.
Another thought, NGF now tracks on course, off course, and both type golfers. It wouldn't be outlandish to think that the Top Golf and copycat upscale ranges retain their golfers, while on course golfers slip back to normal ranges of participation. I mean, when you think about it, upscale ranges provide more of the basic thrill of golf, i.e., hitting the golf ball, which you can do every 30 seconds, vs having to walk/ride to the next shot, while eliminating some of the negatives, i.e., time to play, baking in the sun (assuming covered roofs) and only periodic access to refreshments.
And, I have to say, every trip I have taken to Top Golf shows me that every ethnic group is represented, more teens and kids, etc. We may end up like Japan in the 1990's where due to land shortages, most golfers never got off the range. For us, it will be because Top Golf resembles the video games the next gen like to play........
As always, just an off the cuff opinion.