I'd mourn the loss of the quarter. I use those quite often.
> (we have a $1 coin but nobody uses it)
Because they keep designing it in the stupidest way, making it easy to confuse with a quarter. I don't know why they do that.
That said, I do prefer paper $1 bills over coins. Paper is lighter and easier to carry. But I'd only slightly grumble if we replaced it with a reasonable coin.