Early automotive experts predicted that the proliferation of these vehicles would be limited by the number of workers who could be trained as chauffeurs. That's not what happened. Automakers developed cars anybody could drive. They did it with complex engineering that facilitated operation. Sophisticated at the designer's level, simple at the user's.
Casino gambling fits into the same category.
Not long ago, this activity was limited to a select audience. Mainly, people who had immersed themselves in the nuances of the games and knew the underlying statistics. Today's casinos couldn't survive on this market. Not only are the profit margins on such patrons minimal, but the customer base is far too small to support the myriad of betting businesses now booming at seashores, in deserts, along riverbanks, aboard ships, and on Indian reservations near you. One reason casinos are so appealing is that the games may be intricate internally, but are easy to play.