Blindspotless mirrors are not a replacement for checking your blind spot, at least I cannot reliabilily see cyclists with it.

> the modern world caught up with blind spotless mirrors

How modern are you talking? I've seen some very new cars (I think in a trip to California once, driving an SUV thing that almost needed two lanes to itself) with slightly odd mirrors - perhaps slightly concave or convex? I don't remember, but it had more view, and I vaguely remember the 'image' being distorted slightly though?

Besides that, no car I've driven has had that feature, and I've owned cars from VW, Honda and Toyota all built from 2005 onwards.

I don't lean left when looking back, but I just can't look back confidently because I lose track of what's happening in front of us. My first and only accident occured because I was so anxious to check the blindspot I didn't see the traffic stopping and I rear-ended someone. Blindspotless mirrors are a no brainer (they should be mandatory tbh). There are even inner car blindspot checking mirror, so you avoid the confusing view of two mirrors with different field of view close to each other. Either this or a proximity sensor with a large red light so I can sense I should break no matter where I look, military style.

Honest question:

In what situation were you travelling forward close enough to rear-end another car that you also needed to check your blind spot?

Highway traffic jam. Long period of slow (3mph) drive, then full stop. I was near an exit so I decided to branch of on the right lane that was free of cars, thus still fast (50mph) to take the ramp. Our lane started to move again very slowly, I took the chance to switch lane, but was anxious about the high speed cars, so I checked, double checked, without realizing my lane stopped again while I was taking up speed (hoping not to cause people to slow too much in emergency) and switching lane.

Hit the right light of the car in front with my left one. Now causing real slow down and even more traffic jam.

> blindspotless mirrors

There are cars with 3 mirrors that don't have blind spots, without having some other tradeoff instead?

That makes the blind spot radar/lidar/camera systems on new high-tech cars seem pretty dumb!

Yes, there are.

Difference is radar/lidar both emit the radiation they use to see themselves. It's hard to illuminate a car's outside completely from within the car.

There is also the issue of massive C-pillars mandated by rollover standards and current fashion, which mirrors can't solve by themselves.