Designed for all levels, yes, but set up for the audience you want. Most of the time courses are designed for all levels or some subset of levels. There are many courses I won't take my daughter to, because they are too hard for her to enjoy. I myself enjoy any course as long as it's not set up for a pro tournament. Things like super fast greens, pin positions, or rough so thick you can lose your ball a foot off the fairway and can't advance it more than three feet even if you do find it. Stuff like that makes the course unplayable for me but is a differentiator for the pros. It also makes the game somewhat watchable for me - I know the differences in course setup and how hard some of those shots are. Other things are also done when the pros come, things like manicured fairways without divots, well maintained bunkers, and water that has been clarified (that's a big one, you should see Augusta National in the offseason). Just look at the Masters last year, without all the blossoms and birds. It was a much different experience for the TV audience. All are beautification things for the TV audience, and some even make the game easier for the pros. Pros don't play on beginner courses, there's no amount of setup that can be done to make it challenging enough. That's where I think pool is, you can set up existing tables for better amateurs, but not to differentiate pros. You need tables that are never easy enough for the lower half of the amateur crowd.
Yet still, even with those things, golf courses have to make real changes in the design if they want the pros to keep coming. They have to provide variance from year to year for that select group. That's something pool doesn't provide.
The attitude in St. Louis is to do what you can to get existing players back. About 40% of the leagues are still shut down, so the APA lost a lot of revenue last year while working harder than ever. They've been rescheduling events instead of canceling them so players still get what they were promised, but each time they reschedule it gets harder. Once people feel safe being indoors for prolonged periods, the interest will still be there and there may even be an explosion, it's just a question of time and whether they can endure the storm until then.
