

Ask a surveyor with experience in Mexico.
It looks like most of the minor streets are mostly parallel with or perpendicular to the major road to the north and the rest are aligned along the cardinal directions: north & south, east & west. Lots of the properties and their respective drainage and road right of ways were probably apportioned to align with whatever the most significant roadway or canal was in place at the time. I can see the being portioned off using simple legal language like you can buy the north 50 meters of the south 300 meters relative to “this road” and the east 50 meters of the west 200 meters relative to “this canal”. You can accurately divide an area this way without any need to define a grid north, a proper grid coordinate system, and very basic survey tools.
I’d guess that the other streets oriented to the cardinal directions came later as survey tools and practices advanced or some other change in the way municipalities regulate. For example, in the U.S. you see most gridded streets and lots in older areas, relative to sections townships and ranges, but in new platted developments constantly curving streets are all the rage.
Whatever the cause, you are seeing the history of land development as the area develops it’s customs around land development.
He wasn’t “walking around in public”. He was a gardener, walking around with gardening tools, gardening. I have one of those tools. It’s fucking amazing at digging small precise holes under difficult conditions, but as a weapon it wouldn’t be any more dangerous than any of my other tools. It’s absolutely not a knife. It’s just a narrow trowel with edges necessary to cut through roots. Most gardening tools have a sharp edge somewhere. Context fucking matters. And the fantasy your spinning about this scenario is just more pathetic nanny state authoritarian nonsense.