That's an excellent and very practical question! Moving a full, heavy trash bin to the curb can be a real chore. To answer directly: wheels are not a universal standard feature on all outdoor trash bins, but they are an extremely common and highly recommended option, especially for larger capacity bins.
Many basic, smaller bins (like 35-gallon models) often come without wheels, relying on handles you must lift and carry. However, for bins designed for weekly curbside collection—typically those in the 64-gallon to 96-gallon range—two sturdy wheels are practically the industry standard. You'll usually find them integrated into a hinged, wheeled frame or built directly into the bin's lower back panel.
The key is to look for bins advertised as "wheeled," "roll-out," or "curbside." These almost always feature two large, durable wheels that allow you to tilt the bin and roll it effortlessly, even when full. This design saves your back and makes navigating driveways or uneven paths much simpler. So, while not absolutely mandatory on every bin, if easy movement is your priority, specifically seeking out a wheeled outdoor trash bin is the way to go. It's a feature most homeowners find essential for collection day.