That's a great question, and one I wondered about myself before getting a couple for my patio and backyard. In my experience, yes, the lids on most outdoor trash bins are designed to be quite easy to open with a foot pedal—that's their main purpose. The mechanism is usually a simple lever. You step on the pedal, it lifts a rod connected to the lid's hinge, and the lid swings open smoothly. It requires minimal effort, just a light press with your foot, which is perfect when your hands are full with gardening tools or party plates.
The ease does depend on a few factors, though. A well-made bin with a sturdy metal pedal and good hinges works effortlessly. Cheaper models with plastic pedals can sometimes feel flimsy or stick, especially after exposure to weather. The bin's weight also matters; if it's overly full or the bag is snagged, it might resist opening. For general household and public use, however, the foot pedal is a fantastic feature. It promotes hygiene by allowing completely hands-free operation, keeping germs at bay, and it's also very convenient. Just remember to place the bin on a flat, stable surface for the mechanism to work properly. Overall, I've found them to be a reliable and sanitary solution for outdoor waste.