My parents have done this and it's an example to me of why I will insist we keep two cars as long as we both feel ok driving. There are subtle changes in their relationship that I think result from this decision. Dad's totally fine with it, most men would be. I think Mum feels a little impinged? She drives less. She goes out by herself less.
Not just the independence, but ok the independence.... I want DH to go and do stuff. I want to go and do stuff. I need to be able to pop out when I want and pop back when I want. I go out and drive far far more than DH. "oh wait I can't to Costco this morning because he has to go get a haircut" or something silly. I know that's selfish but over a period of years I would start to resent that feeling.
I know it makes sense practically, hey and less insurance and maintenance costs. And DH goes out far less than I do. There's always Uber or a rental for any time you actually need the 2nd car. But, nope, not for me.