This seems pretty counter intuitive but this is often the other way around. The safest streets in Europe are where cars, bikes and pedestrian mix together. It force focus on the driving task instead of doing something else. If you are interested, Freakonomics have an episode: "Why the U.S. so good at killing pedestrian". It's an interesting discussion with no simple answer.
It's because US streets are designed much wider than equivalent European streets. US design standards have wider LOS than Europe so they design for faster vehicle travel and higher throughput, which puts pressure on slower modes. This comes at a financial costs (better pavement, wider roads) but the US gladly pays a fortune for roads.
As an equal-parts driver, biker, e-scooter rider and pedestrian, this is horrible. Yes, you have to focus on the driving, or walking, or scooting, but you're in constant stress because you can accidentally hit someone coming from any direction. Or they can hit you.
It's far better to have separate spaces, and cross only when you really have to.
Maybe you should be stressed? The point might be that environments where you're not stressed because they lull you into a false sense of security tend to kill more pedestrians.
You're moving tons of metal at high speeds. Don't get too comfortable doing that.
Why do you assume I'm the driver in this case? I'm stressed as a pedestrian too.
You really think it's healthy to be stressed all the time?
I live in Israel and we've had pro-democracy demonstrations in a main intersection in Tel Aviv, every Saturday for the past 30 weeks. There are people and bikes all around but no cars and no motorcycles. It's ridiculous how calming it is to be on the street and not have to worry about hitting someone or getting hit.
Also, when I'm on the freeway, though I'm moving tons of metal are even higher speeds, I'm somehow less stressed. I'm alert, I'm actively driving, but less stressed - because the frequency of surprising events happening is low. In the city there are jaywalkers, kids, tiny bikes with no lights, e-scooters, buses pulling in and out of stations, gas scooters cutting you off. It's completely different.
I have also seen cars go 60+ km/h through traffic-calmed cul-de-sacs where children were playing on the street. Are you saying that only cyclists emulate Carmageddon in real life?
In that area you will find highways, surface streets, bike paths, pedestrian walkways, trams, commuter trains and other kinds of transportation in a way that comes across as elegant, at least to me.
Or maybe better the cognitive load? There are various studies that show removing white lines and navigation furniture to make junctions more of a puzzle, decreases speeds and increases attention and safety.
Inside of a mall where there are only pedestrians is very safe. Freeways are fairly safe. Protected bike lanes are safe. Light rail is safe.
Mix all of those on a strode, rail, buses, trucks, cars, bicycles, pedestrians, not safe.