That's a great question about a detail we often overlook! In my city, I've noticed it really depends on the specific bin design and location. Many modern public bins, especially in parks or downtown areas, now have lids that are permanently attached with a hinge or a tether. You can flip them open, but they can't be fully removed, which is a smart design choice to prevent loss and litter scattering.
However, older models or simpler bins in some residential alleys might still have lids that simply sit on top. These can definitely be blown off by wind or removed, sometimes ending up lost or broken. It's a minor nuisance that affects the bin's function and the area's tidiness.
From a practical standpoint, attached lids seem to be the trend. They help keep pests out, control odors, and ensure the bin looks complete and functions properly. Losing a lid often means that trash can becomes an open eyesore. So, while you might still find both types, the shift toward secured lids makes sense for maintaining cleaner and more efficient urban spaces. It's one of those small urban design choices that has a bigger impact on daily life than we might think.