This was a whole thing in the 70s. There was a 3 step plan:

1) Bring back the $2 bill (it had not been printed for a decade+)

2) Redesign the $1 coin (Eisenhowers being too big and heavy)

3) Stop printing $1 bills

Unfortunately they never got to step 3, which made 1 and 2 pointless, and here we are.