[ianferrel]

There's a lot of physical infrastructure that works with quarters, and it's probably not worth giving that up for slightly improved coinage. Just drop all the coins smaller than a quarter.

[toast0]

There's also the 3rd amendment. It would be worthless to say soldiers can't demand change for the vending machine, when nobody at all can get quarters.

[orangecat]

There's a lot of physical infrastructure that works with quarters

Very good point and I think I'm convinced.

[basscomm]

That only works if you completely reconfigure sales tax