Thankfully, the interface designers for cars and planes don't break into your garage/hangar in the middle of the night and move the controls around, change their colour and shape, or rearrange the entire control panel without giving you any warning or choice. App and web designers are quite keen on doing this. Imagine if a Boeing pilot stepped into the cockpit one day and found it had suddenly been reconfigured to look like an Airbus. Apps like MS Office have orders-of-magnitude more users than airliners, and yet they don't bat an eyelid when suddenly moving everyday functions to different parts of the screen.