I know this thread runs the gamut of armchair experts, pretend experts, and actual experts and there's no telling who is which but I really want to know why the downvotes and why this is not a good idea.
The idea is to notify for crucial settings, replace vocal confirmation (probably) already in the SOP anyway, reducing mistakes in bad faith or otherwise.
Don't some planes already have an automated announcement for seatbelts on?
Only reason I can think of why it's not there yet is the cost (whether $$$ or design opportunity) of cramming that in the already-cramped cockpit.
