Ian,
While my son is a stockbroker, I would have welcomed him. Also, ask many young folks and I have been optimistic. It may stem from the fact that I entered the biz in 1977, not long after the oil crush of 1974, the Nixon impeachment, a similar economy and one thing that had folks scared back then - tax deductions for memberships were greatly reduced!
As my mentor used to say, "Golf's been going strong since 1500...I think we can say it will last." There have and will be ups and downs. Besides that, the world is sooooo big. For the relatively few courses we talk about here, or the fewer renovations to high profile courses, there are 15,000 US courses, maybe 25,000 worldwide, and all of them do some work most years. The trick is to capture that in a business model, be it through more travel, leaner organization, more digital transfer of info, or whatever.
Some bright young person shall capture all that is necessary to be a success. 20% will have some success, and 80% will struggle, about the same stats as it has always been.