I agree about the cash - I can see the cashiers would really rather not take cash. Except gas stations - they don't seem to have a problem with it. But aside from contactless payments, can't you use credit or debit cards without touching anything that doesn't belong to you? Insert card in chip reader, wait, pull it out and go? Or do some also require a PIN entry or signature? That would kind of defeat the purpose. Does anyone know how that works? Limited experience here, but with recent credit card uses I did not have to "sign" or enter a PIN. I think I read you don't need a PIN with a debit card either unless you also want cash back, but I'm not sure.
Pro tip: Those blue nitrile golves work fine with touch screens. You don't even need to put the glove on. Just pull it out your pocket and tap away, then put it back. Wash the glove when you get home - you can spray it with disinfectant for example.