Neil - my next door neighbor has Asperger's syndrome. I suspected so after interacting with him a few times (based on my fairly extensive experience interacting with Asperger's people), but didn't say anything. Then his wife told me.
Anyway, he's in his 40s and seems to be a great guy - friendly, polite etc. He's from Washington state and has been a licensed contractor for about 30 years, focusing on large business contracts like malls and office buildings. He understands (and has written) very complex contracts, and has been to Washington DC on two separate occasions as a representative of the American construction industry, to speak to Congressional committees about construction regulatory matters. He is also very knowledgeable about employment law.
I think he must have been pretty successful in his contractor work because he has been able to retire before the age of 50. (And it's not about his wife's net worth, she was a river guide all her life, earning peanuts. So they're retired on his money, not hers.) He owns two houses, one here in Mexico and one in Washington state. I don't know what his US house is worth, but I do know that his Mexican house cost him $240,000 USD, all cash. He plans to spend six months per year in Washington, and six months per year here in Mexico.
I am certain that in his job, and in his normal life, he must have had to drive vehicles pretty much every day. He hasn't yet bought a car here in Mexico, but has rented one for a couple of months + my husband has loaned him his car a few times. (My husband is a retired auto insurance investigator who has seen so many bad things in the car world that he is loath to lend his car to anyone. He won't lend it to my brother - who has a lead foot - but he will lend it to our Asperger's neighbor. This tells me something about my neighbor's apparent ability to drive well and safely.)
Given all this, Neil, do you really think my neighbor should give up his driver's license?