No it's not. My 13-yo son uses a Linux-based phone, my wife uses a Mac and my mother uses Ubuntu. It's fair to say neither of them uses the terminal for anything (wife did sudo shutdown her Macbook when it refused to do it from the Apple menu), but Unix is not about terminals - it's an operating system ideal.
You ever stand behind a door because you were afraid the modelines in your XFree86 config file were going to blow up your monitor?
Uphill both ways in the snow, etc.