[L-four]

I think it's software is made with the American market in mind. And local businesses use it as is and profit.

[dguest]

Yeah that was my assumption as well.

There's no custom of tipping that much at any of these places, but I feel cheap just clicking the lowest (no tip) of 4 options. Maybe all the time I've lived in the US plays a role here but it seems like it might just be the decoy effect [1] applied to tipping. It will be interesting to see if consumers see this as a dark pattern and push back.

[1]: https://en.wikipedia.org/wiki/Decoy_effect

[jeltz]

In Sweden a lot of the software with tipping option is made by Swedish companies who only operate on the Nordic markets.