Final answer:
Legs on a floor-mounted dishwasher provide stability, prevent water damage, and offer ergonomic benefits to the user.
Step-by-step explanation:
The reason for legs on a floor-mounted dishwashing machine is to provide stability and support to the machine. The legs raise the machine off the floor, allowing for proper drainage and preventing water damage to the floor. Additionally, the height of the legs ensures that the machine is ergonomically positioned for the user to load and unload dishes comfortably.