I always have one or two in my pocket. I spend 'em regularly.
I also carry and routinely spend Kennedy half's. It's really funny for me. (I'm a geezer)
There was a college freshman working as a cashier in a grocery store yesterday. My bill was $10.65.
I handed her a $20 a Kennedy half, a dime and a nickel.
She had no idea what the half was. I had to explain it and she kept flipping the half over and over trying to figure it out. Then she didn't know where to put it in the drawer. She was so flustered she screwed up the change. I finally convinced her to just give me a $10 back...
It's entertaining.