That's a great question! Honestly, replacing the wheels on a standard outdoor trash can is usually not difficult at all. Most people find it to be a straightforward DIY task that takes less than 30 minutes.
The main factor is the type of mounting your can uses. Many models have wheels that simply snap onto a metal axle or pin. For these, you often just need to pull the old, broken wheel off and press the new one on until it clicks into place. No tools required!
Other cans might have wheels held on with a nut, bolt, or a plastic retainer clip. For these, you'll likely need a basic wrench, pliers, or a screwdriver. The challenge here is usually just dealing with dirt, rust, or a stuck fastener. A little lubricant can help.
The real difficulty comes if the axle itself is bent or the mounting bracket on the can is broken. In that case, you might need a replacement hardware kit or even a new can. But for a standard wheel swap? It's generally very easy.
My advice? Flip your can over, look at how the current wheels are attached, and search for a matching replacement set online or at a hardware store. With the right parts, it's a quick and satisfying fix that saves you from buying a whole new trash can.