They could, but generally they don't. There is some truth to what you say, but if you've worked anywhere for very long, you'd also realize most people are very,

They could, but generally they don't. There is some truth to what you say, but if you've worked anywhere for very long, you'd also realize most people are very, very bad at looking things up on their own! They'll try to reinvent the wheel when the wheel already exists (or almost.)