People can be woefully inefficient, especially if they have been taught the most inefficient means of performing a task. I use CMD and direct filepaths myself in Windows but that’s not everyone’s jam.
That’s the strength Ubuntu has; oftentimes people don’t know the most efficient way, and though those dependent on GUIs lose a little bit of time per action, some users would lose a whole lot more time trying to do things a “Superior” way. So there are a variety of interfaces and interface configurations to suit everyone’s style, from basic launcher to the most fancy of buttons.