That's a really common concern I hear from city dwellers! I used to worry about the same thing when I first moved to an urban area and noticed raccoons and squirrels lurking around the bins at night. The good news is that modern urban trash bins have come a long way in terms of animal security.
Most contemporary bins feature locking mechanisms or specially designed lids that require human hands to open. Many cities have implemented bins with clamp-style lids that animals simply can't pry open with their paws or snouts. The materials have improved too - heavy-duty plastics and metals that can withstand chewing attempts from persistent critters.
I've observed that many municipalities are now using bins with smooth, rounded surfaces that give animals nothing to grip onto. Unlike older metal cans with handles that raccoons could manipulate, these new designs are remarkably clever. Some even have internal barriers that prevent animals from reaching the contents even if they manage to get the lid partially open.
What's really impressive are the smart bins appearing in some cities. These use sensors and automatic locking systems that only unlock during designated collection times. While not everywhere has these high-tech solutions yet, the standard bins in most urban areas are specifically designed with animal resistance in mind.
The key is proper usage - making sure lids are fully closed and not overstuffing bins so they can't seal properly. When used correctly, today's urban trash bins provide excellent protection against our furry neighbors while keeping our streets cleaner and safer for everyone.