there is no time in driver's ed to teach the local laws everywhere. for instance, in the city of gatlinburg, tennessee, pedestrians have the right of way everywhere. your CT driver's ed was (likely) state funded, therefore has no need to teach you about NY local laws, regardless of distance. indiana is 30 minutes from me, and their speed limit is slower. im expected to pay attention to that when i arrive.
driver's ed in this country is a shame, but you've got some far-reaching personal vendetta against the driving public...when i'd be willing to bet you'd be furious if you had to learn the local laws of not only all 50 states, but the oddities that exist in different municipalities.
its just not practical.
lets focus our resources on teaching people to stay in the right lane, or that flashing your brights is NOT a personal attack, or that construction zone speed limits are for real, things like that.
hell, i can see a roundabout from my house, and people still don't know how to use it...that's life. we've had traffic lights for like 80 years, and people run reds.
