To reiterate the thing I have always maintained and try very hard to live up to: I don't lie. I doubly don't lie to the people I love /who may depend on the things I offer/.
If I can't provide something I say so. If I say I can provide something i intend to and will maintain the resources to do so.
Because letting someone think they have a safety net when they don't, even with the best of intentions ('i let you think so to give you the psychological safety to solve it yourself'), is unethical