If they really stopped striking coins this year, I can see a shortage happening coupled with other issues mostly due to COVID hysteria.
People tend to hoard (unintentionally) coins because they think they’re annoyances. Maybe someday they’ll use them, or trade them in, but like my husband and father, mostly they just keep accumulating in a jar somewhere. They take coins only, do not give. (This is probably more a problem with men, since they don’t have good carrying systems.)
Some will just collect what they can for fun each year.
Couple this with all people not interacting anymore in the real world. Few opportunities to even use coin.
BTW, this means there will be a low 2020 montage of coins and thus, they will be unusual and worth a little more. Unless everyone hoards the 2020s and they’re not as rare to collectors as they could be.
I hoard nickels. If I get one I won’t spend it and I will use dimes and quarters in any permutation that will get me a nickel back in the change. Pennies dimes and quarters pile up and when I get a bunch I will put them in a self checkout at Walmart which accepts coins. I really hold up the line because it counts real slow.
The reason I hoard nickels is that they have the same metallic content today as when they were first made: copper and nickel.