Your description isn't how it works in most places really. The "districts" aren't usually that far apart. It would be common to find single family homes close by a school, or an apartment building right next to an office building.
Zoning is useful in scenarios like industrial vs residential buildings. You wouldn't want to have an apartment building next to a railroad hub for example. The railroad would be very loud/dirty, and industrial business would benefit more from being closer to the rail hub.
I know i exaggerated it for comedic effect. Most of my knowledge of zoning is limited to these two youtube videos
Your description isn't how it works in most places really. The "districts" aren't usually that far apart. It would be common to find single family homes close by a school, or an apartment building right next to an office building.
Zoning is useful in scenarios like industrial vs residential buildings. You wouldn't want to have an apartment building next to a railroad hub for example. The railroad would be very loud/dirty, and industrial business would benefit more from being closer to the rail hub.
I know i exaggerated it for comedic effect. Most of my knowledge of zoning is limited to these two youtube videos
https://youtu.be/bnKIVX968PQ?si=wfyTmw9rgSBrJznu
https://youtu.be/CCOdQsZa15o?si=j02uEA5phZ2sIF95