As one wanders around greater Sydney, one notices really small things, like missing links in the footpath network. None of these are completely offputting for a healthy, fully-abled pedestrians. For those with mobility challenges, each of these is another unnecessary obstacle.
Each of these has a particular reason, related to who owns the property, the scope of projects, and so on. But in the end, there is a competence issue, no one was paying attention at some point.
Examples of missing footpaths are shown in the photos below. I do not believe this is a complete set.
Councils and developers and contractors and architects and engineers can do better. It requires coordination and thinking before acting.