Sure, but ensuring all mechanics everywhere have access to use PPE, and then enforcing its correct use is way less effective in practice than removing the hazardous material from the workplace entirely. Being exposed to any fine particulate matter over long periods will be detrimental to health (we aren't evolved to breath large amounts of dust), but not every particulate is an acute carcinogen.
> we aren't evolved to breath large amounts of dust
We are doing that evolution at present!
The best way to do evolution is something that kills children before they breed. Second best for evolution is killing adults before they breed. Mostly ineffective is killing adults after they breed: although in theory loss of an adult can affect the population breeding chances downwards for children.
Just a reminder that evolution is about breeding children and not so much about death.
I'm just spitballing here, but I'd wager that the human toll required to evolve effective resistance to regular and prolonged asbestos exposure is more than most of us would be willing to pay.
We already evolved these massive craniums filled with (to date) the most intricate and powerful general computers in the world - it seems like the solution to asbestos exposure is simply engineering a way to avoid it. No evolution necessary.
We can play whack a mole getting every source of particulate out of the garage (can we even do that? consider sanding, grinding, painting, etc, not just the brakes are making this), or we can use our existing workplace safety enforcement mechanisms to enforce ppe in this industry like they've enforced ppe in many other industries.
Or, and hear me out because I know this is crazy... we can do both! By trying to get rid of the bad stuff from the workplace and get better at enforcing ppe use.