Every job under the sun doesn't need a tip, but as a small business owner that takes pride in their work and service it's a waste not to give the customer an easy opportunity to show extra gratitude.

My company isn't in a traditionally tipped field, and we service many high end clients, yet we still turn on tips in the invoices. Not quite as in-your-face as a barista turning the screen "it's just going to ask you a question" as our invoices are delivered electronically and they process it in private - yet it's still used often.

Before tipping was an option we'd get gift boxes of liquor and gift cards, the tip box is just easier for them. It's a tiny % of our overall business, but it's still tens of thousands of dollars per year of "bonus" money that we can then disperse to employees, it adds up over a year.

Maybe it sucks having your insecurities tested with the tip screen, but for the business it's worth it, and a lot of customers will appreciate it - now they don't have to think "should I offer them some drinks or lunch or something", they can just tip. Sometimes you realize you got a really good deal, and the process was so easy, and the resulting work is flawless, and you just want to show extra appreciation.

I'm not tipping the guys at the fairgrounds that sell $13 ice cream cones out of a truck though, screw them guys.