I bet we would be surprised by the amount of home owners that don't know how to turn off their water main, even though YouTube probably has 1000 instructional videos on it. I would wager 90% of life long renters have no idea there is a main shut off, at all.
We, of course, do have one, and ours is out by the street, in all the houses I can recall living in, in Texas.
As for snow plows and road salt posts:
No municipality in North Texas (not you, Panhandle) is going to spend the cash to upkeep and store that equipment for an average use of 1 day every 6 to 10 years. That means on the snow day, the whole city shuts down, and very few businesses are going to pay private plows to upkeep their property for all the traffic that doesn't exist. Therefor no private individuals are going to spend the money and garage space to keep a blade for an extra thousand they might make, once every decade. The most the city will do is enlist the construction trucks with sand spreaders, scoop up the sand they bought for various road work projects, and put it on the iced bridges. (South Texas, like Houston and San Antonio get snow once every 50 to 100 years, so they aren't even worth discussing)
Additionally, for native Texans, garages are for storage and/or watching the game/race with the bros while drinking from a keg. So any plow blade will get buried so deep, no one would be able to get to it, when it's needed, anyway.