I know for my kids, it was a combination of factors. It wasn't so much how confusing and complicated pinball can be, it was the reward for figuring it out. The juice was just not worth the squeeze. There have so many more opportunities available to them. The arcades were big back in the day because we were all latch key kids. The alternative to the arcade was doing the same dumb shit you did outside everyday. Once you dropped that quarter, the goal was to make it last. We got better and figured it out because it was a fun and new experience. It was a lot more fun than kicking rocks. Why would any kid invest that time and energy. It's not like they have been carving their initials into trees. They share their lives with millions of people. My kids had shit to do from the moment they woke up until the moment they fell asleep. If the reward was there they would figure it out and that would be the end of any player over 30 winning a tournament ever again