The problem is most buyers of phones and tvs don't realise they aren't buying a phone or tv, they are buying a device with many many functions .

The stereos of the 80s that had a hundred functions still had simple on off switches , basic functions were simple, and few people used the hundred functions. The buttons were just a selling point.

Now you need to go through hoops to use a phone or tv for the simplest function and if people are anything like my husband they love to add gadgets and extra layers of functions, making it even harder. It's nearly impossible to ignore the hundred buttons.

They just want to call someone up, to answer a call or watch their favourite tv show. And that's how I would teach it. Just the most basic uses they want, then when they are familiar with that then maybe add some more functions.