Let me tell you a story...
Not so long ago, I had to hire a long wheel base transit van. Now, I've been a driver for a few decades now, and I've driven a van or two before. I was handed the keys, hopped in and spent a weekend driving the van around happily. On the return trip I had to fuel it up, as per the hire agreement, so I stopped in a petrol station about a thousand yards from the hire shop and filled the van with diesel. Job done, I hopped back in and turned the ignition. Nothing. I turned it again. Still nothing. Again, with the clutch down (as some vans I've experienced need that to start sometimes.). Nope. Not a flicker. Then the van alarm sounded as I got out to check things like fuel cap being closed etc. Now I couldn't get back into the van. Played with the keys a bit and alarm stopped. Finally got back into van, still couldn't start it. Queue of people behind me waiting the fuel pump are starting to get annoyed... it was a commercial petrol station, so its experienced lorry and van drivers behind me too. So, I called the hire place and explained. The guy on the phone *laughed* at me whilst explaining that I'd clearly activated the anti-theft alarm somehow and thus, obviously, I had to hold down the clutch AND the brake whilst turning the ignition key the opposite way from starting. Success. I pulled away. To the applause of the grizzled van driver behind me. What a noob I was eh?!
No. fuck them all. I used the van the way I had always used a van and was not privy to the specialist knowledge that the experts clearly thought I should obviously know. Arseholes.
That day, I understood the users plight.
Let me ask you a question, fellow techs; where is the ON button on your TV? Your microwave? Your kitchen appliances? They're on the front, right? They're not on some other box connected to the device by a cable, are they? In fact, can you think of anything other than a PC that works that way? Even your multi-component stereo has a single on button that switches all the components on, yes?
Food for thought, and perhaps understanding the users a bit?