Our biggest cities normally have bus and train. About half of them have some sort of light rail/tram equivalent too. The coverage isn't completely comprehensive, so it's possible to find suburbs that don't have great coverage, but by and large, it's pretty good. Footpaths and bicycle paths are common too. The cycling infrastructure is often gappy, so you on commutes etc, you can find yourself navigating spaces without dedicated cycling infrastructure, but generally, you can get a good portion of a cycle commute on dedicated bike spaces. The only roads without a pedestrian corridor of some sort are generally major highways

In our smaller and medium cities, the trains are normally inter city, not local, so they're not so much use as public transport, but there are generally buses, though with less coverage. Good pedestrian infrastructure even in smaller cities though. It's harder to survive in smaller cities without a car, but possible.

Once you get out of smaller cities and in to towns and villages though, it gets harder again.

Melbourne has the world's largest tram (streetcar) system!