Lego
Lego's educational benefits have been documented across 4,000 peer-reviewed studies, establishing connections to spatial reasoning, mathematical thinking, and fine motor development. The Lego Foundation has invested over $400 million in researching play-based learning, making Lego one of the most studied educational tools in human history.
Schools worldwide incorporate Lego into STEM curricula through Lego Education programmes. MIT's Media Lab famously developed Lego Mindstorms, introducing millions of children to robotics and programming. Lego has achieved the remarkable status of pedagogically approved entertainment.
Mario
Mario's educational contributions, whilst less documented, are not negligible. Studies indicate that platformer games improve reaction time, hand-eye coordination, and spatial navigation skills. The problem-solving required to navigate Mario's increasingly complex worlds exercises cognitive functions in measurable ways.
However, Mario games face the perpetual challenge of parental scepticism regarding screen time. No school curriculum incorporates Mario as a learning tool. Mario's educational value remains incidental rather than designed, a pleasant side effect rather than core proposition.