Every once in a while, I pick up a silver dime in my change but no silver quarters. Halfs haven't circulated in ages but I remember when they were common in returned change.
I got a 1964 half last year at the grocery store. The cashier asked me if I minded getting a 50 cent piece in change and I said “Not when it’s silver!”
First one in 20 years; I don’t know how it got back into circulation...