I've scraped enough corpses off the tarmac to know thst the average motorist can come a cropper with oversteer, old tyres failing, delaminating, or simply not gripping.
Awful. When I worked with police officers and other emergency services staff, I could see people needing time out.
Made me grateful I only had to deal with IT systems.
And I've seen how oversteer can affect people with Jesus fish badges on their foot lid and picnic blankets over the back seat.
Once you've had to have a colleague hose the remnants of someone's brain from the tread in your boots before you can go home you'll never again take the slightest chance with tyres or brakes on any car that you or a loved one will travel in.
Bin them at 3mm or 6 years (if in regular use from new) or 8 years (if they've been correctly stored) and if you only buy a pair at a time keep the best ones on the rear. It's all pretty basic stuff but too many people think they know better and end up sitting on a cloud playing a harp for their trouble, or in a fiery basement with a red hot poker up their bottom.
In my second job, which involves driving passengers, I do tyre (and other) checks before every journey.
The tyres on my own car look like they have years of wear in the them, but thinking of age I checked the dot codes. Blimey, almost 10 yrs old, which is a good chunk older than the car itself!
My final thought: I understand the importance of tyres, but some drivers are cautious, others push much closer to the limits of grip. I'd say that no matter how good their tyres are, they're still a risk to themselves and others.