The school system does what it was built to do, and that's train people to do jobs. Could it use reform to be a more modern educational tool? Sure, but removing "advanced math" like trig or geometry is absolutely not the way to go about that. Besides, trig and geometry isn't even advanced math. It's complicated and difficult, but if you've been paying any attention in class you should be able to get by.
A lot of the arguments you hear against the school system really aren't what they claim to be, from students at least. They say they want to be taught more practical skills, but what they really mean is that they don't want to do the stuff that's required of them. And besides, if you can't be assed to learn your forgetin shapes I see no reason why you should be trusted to learn anything more "real world"