>I clicked on it to see what it was and it said “this $10 charge is optional and helps us keep running instacart”. I have never used Instacart but it boggles m

>I clicked on it to see what it was and it said “this $10 charge is optional and helps us keep running instacart”. I have never used Instacart but it boggles my mind that such an option would exist. It's the sort of thing I might expect to be asked entering a museum or a non-profit community health clinic but why on earth would anyone feel inclined to pay extra to fund a for profit private company beyond any required charges?