That's a great question about urban waste management! Generally speaking, most public trash bins in cities don't come with pre-installed liners or bags. The bins you see on street corners, in parks, and at public facilities are typically designed to be used without liners, as they're emptied regularly by municipal sanitation crews using specialized equipment.
However, there are some exceptions. You might find liners in certain high-traffic areas, indoor locations like shopping malls, or in some modern "smart" bins that use bags for easier waste collection. For your home or private business use, you'll definitely need to purchase trash bags separately that fit your specific bin size.
The best approach is to check your local municipal website or contact your city's waste management department for specific guidelines in your area. Some cities even provide specific types of bags for certain recycling programs. When using public bins, it's always helpful to securely tie your garbage in a bag before disposal to prevent litter and make sanitation workers' jobs easier.
Proper waste disposal helps keep our cities clean and sustainable!