Fait accompli is a deed that has already been established and therefore becomes difficult to abolish. A few times subsidies for your married adult children becomes lifetime subsidies. Repeatedly overpaying someone makes it difficult not to overpay him every time. Frequently agreeing to do some banal tasks for your associate evolves into a fixed routine.
Some of your decisions were not meant to be permanent arrangements, but they could develop into one and cause a persistent long-term damage.
People rarely take the plunge to undo a fait accompli because it is uncomfortable. It upends your reputation. It ruins your relationships. Friends become fiends. Worst of all, it wipes off your past benevolent intentions.
Preclude any deed that will turn into an undesirable fait accompli, no matter how generous you are at the beginning.