Grow some patience and empathy. Someone who is penny pinching deserves your respect. Someone who is unable (or perhaps unwilling) to use technology also does.

If you go into a grocery store and aren't patient for those around you... well maybe you should be paying the premium to purchase your groceries online and have them delivered to you. Then you don't have to worry about the extra five minutes it takes for granny-not-yours to write out a check whose sum total is a significantly large chunk of their social security for the month.

It is not penny pinching, it is simply keeping the coinage in their purse light.

It is not from frugality that some people wait until the cashier is giving them the total that they start writing out their check including date, recipient, and purpose.

It is why I prefer the self checkout line, and I do my best not to slow down the people behind me so that they do not have to wait an extra 5 minutes for me.