As far as I can tell that’s not at all the case in Sweden where I live, in fact geriatric or slow drivers are very rarely involved in accidents. Intoxicated drivers are extremely rare compared to most other countries. See e.g. https://www.itf-oecd.org/sites/default/files/sweden-road-safety.pdf which says “Inappropriate speed is one of the leading causes of road crashes”. You can find more research saying similar things on Google, e.g. that for every 10 km/h increase, the risk of an accident increases by 33 percent.
But it’s not just a matter of having a high overall speed. It’s also how quickly you accelerate / break. BMW/Audio/Tesla drivers have a high capacity for acceleration and they use it e.g. to overtake in situations when others wouldn’t. I suspect the cause/effect is the other way around though: if you’re a reckless driver who doesn’t care about safety, you’re more likely to choose a car that has a lot of power.
It would depend on the jurisdiction obviously, but I believe most of those points are irrelevant.
As far as signing goes, I know that in my country (Sweden) a verbal agreement is legally just as good as a written signature - it’s just harder to prove in court. Contract law typically recognizes the ability to agree electronically, and in EULAs the agreement is made by using the software. Again, YMMV by country. My original claim that they’re typically illegal was about the actual terms of the agreement, which often conflict with written law. For example in the EU you have a right to reverse engineer products for the sake of interoperability, and no EULA can override that right.
In Sweden there’s also a law to allow you to make personal backups of media and software, and you’re permitted to give copies to your friends and family. In fact, there’s a state-regulated “private copying levy” designed to compensate content owners for their monetary loss caused by this copying. Which really infuriates me considering the lengths they go to to prevent me from doing the copying that I’m paying them for the right to do.