Am mid-founding a startup which will give 5% of its profits to charity from day 1. Customers won't have a choice about this - either the amount or the charities

Am mid-founding a startup which will give 5% of its profits to charity from day 1. Customers won't have a choice about this - either the amount or the charities chosen - so this will be intrinsic to doing business with us. Trade with us if you like that, don't if you don't. Will be on a tiny scale compared to the donations PG refers to, but customers (who are donating indirectly) will have to trust us, while we trust the charities we give to. There's no meddling or options to choose from, by design, for the same reasons PG describes.