I am clearly saying that this is a demographic issue. Each recreational activity has its own and very different demographic.
My personal opinion is that THIS had caused pool's decline more than any other factor. Intentionally or not, the sport of pool has molded itself to lower and lower income demographics. That is the root of MANY problems. Why advertisers don't want us. Why pool rooms are in worse neighborhoods than 50 years ago. Bad economies hit lower income people harder meaning less money for pool rooms.