Here is why most of you can't drive...

Setting aside inexperience, elderly, and insecure/indecisive drivers (who are the obvious).

Lack of awareness: Not paying attention to everything around you, yes pay attention forward (primarily), but you should be looking at more than the car ahead of you, observe and prepare for the surrounding traffic and what it is doing so that you can react as soon as possible, if needed.

No depth perception/ unable to process speed: This is in particularly a problem when turning out or merging, if there is a turning lane USE IT to see when it would be safe to get into traffic, just because you THINK you have the time to slowly cut through oncoming, the turning lane, and insert your cruddy truck straight into traffic, doesn't mean you should/can. Even playing devil's advocate, let's say you did have space and the other car you wanted to merge in front of was speeding and came up faster, WHY would you logically WANT to risk what could cause more than harm to the cars or only those involved? It's just ignorance or flat out neglectful of others.

Lastly...

Inconsiderate/irresponsible/negligence: I understand you think the world and everyone around you must adjust their lives/priorities around you, but sadly that's simply not how life works, especially when operating what is (essentially) a death machine (if used by irresponsible people).

I get that YOU think YOU know what you're doing and that everything around you is somehow at fault for not understanding that, but that's unfortunately not how it goes in life, especially when you think it's fine to cut in front of the car that has already prepared for where their going and got into the turning lane, but because "you're in front." and suddenly realized where you needed to go, cut them off inches before turn (why not right?)... or even better hold up the rest of traffic and make them wait behind you at the green light because you could plan and drive accordingly, you're responsible for where you're going, not everyone else.

The road isn't a place for your entitlement or lack of observation/awareness of traffic and cars around you, it's a responsibility and one that requires having to pay attention which is what everyone around you is doing when they are having to predict that you're probably one of those idiots that's going to decide last minute that your exit is RIGHT HERE! and cut across 2-3 lanes, the white lines, and the cars already ON the exit that now have to react because they actually payed attention and planned/prepared for the exit ahead of time.

Rant over.. thanks for hearing me out.