Bugs the hell out of me that they have decided to ask for tips in nearly every single transaction these days.
First of all, it is absolutely BS that servers get paid next to nothing in wages on the assumption that they will get tips anyway to make up the difference to at least minimum wage. That means that the difference in that case is not even a tip to the server for taking care of you, but a subsidy to the restaurant to cover wages that they don't want to pay. That also makes tipping a borderline non-negotiable which eliminates the point of it being a thank you for good service. They should be paid reasonably first, and tips should be optional rewards for gong beyond the minimum.
Second, when you ask for tips on things you shouldn't you frustrate people more than they already are with tip culture and make those who are dependent on it less likely to get them.
Third, as said, tips are thank you's for good service beyond that bare minimum. Cooking the food I ordered and taking my money is the bare minimum. You don't get a tip for restaurant carryout (who does that tip even go to? The cashier? The kitchen staff? The owner?).
I walked into this store, gathered my items for purchase, carried them to the counter, will scan my card on the card reader myself, and will carry them out. You scanning the barcodes is the bare minimum. No tip for you.
You provide a service, you charge a price for that service, I agree to the price for that service and you provide that service and nothing more. You don't get a tip for the bare minimum. I paid for your service with the price. Stop quilting people into volunteering more without giving more.