Disney officially banned wagons and "stroller wagons" from its parks in 2019 primarily due to crowd flow and safety concerns. As the parks have become increasingly crowded, the large footprint of wagons—which are often pulled behind a person rather than pushed—created significant navigation hazards. Because the person pulling a wagon cannot see what the wagon is doing or whom it might be bumping into behind them, it frequently led to "ankle-biting" incidents and tripped up other guests in congested areas. Additionally, wagons often take up much more space than a standard stroller, making it difficult to fit them onto Disney's transportation systems like buses, monorails, and the Skyliner. The ban also includes popular hybrid models like the Keenz and Veer. To be permitted in the park, a mobility device must be a traditional stroller (no larger than 31" wide and 52" long) that is designed to be pushed. There is a very limited exception for guests with disabilities who have a documented medical necessity for a wagon; in these rare cases, the wagon must be tagged as a "Stroller as a Wheelchair" at Guest Relations. For everyone else, Disney offers standard strollers for rent at the front of each theme park.