LOL. I never thought I would use my credit card like I do now, for groceries, etc, but about 4 years ago I finally gave in. Earlier this year I did ask about if my grocery store would accept TRAVELER'S checks. It was only then that I found out they no longer took regular checks. Clerk said they would take Traveler's checks because they are considered cash. Actually better than cash because if they take counterfeit cash, they are on the hook for that, but the Traveler's Check companies will honor that.
And as I have mentioned before, my daughter is in the process of selling her house and the power washing company, pest inspection, roof inspection /repair people all gave discounts for cash or check. My daughter is 33 and had a checking account for 10 years, but never ordered checks until she bought her house 5 years because soo many things she has needed done related to the house required or gave a discount for a check.