@Quantum Fusion: I agree completely.
The reason most people don't have Linux is the same reason why people don't mess with the wiring in our houses or install their own central heating.
People see the risks as being too great. Think about it. I'm Mr. John Normalberry and I've just brought a shiny new computer with Windows Vista installed on it. I like Vista because it's functional and it never crashes (hypothetically).
When my friend, Mr Ned Neighboursmith suggests that I download Linux, I calmly agree with him and then when he's gone I dismiss the idea because a) it's too difficult b)If I install it and it goes wrong, my warranty won't cover a repair and c)I just spent money buying a computer with Windows Vista on it. If I uninstall Vista, that's turned out to be a great waste of money (we're assuming that Mr Normalberry doesn't want to dual boot)
So at the end of the day, our friend Johnny is going to stick with his Vista PC because he knows that he has Microsoft's dedicated and hardworking support team on standby, a nice warranty from Normalton PC Planet, and if it does break down and causes damage to his computer, he can sue the b'jesus out of Microsoft. That's why Microsoft is a captain of it's industries (apart from one of them) and Linux is still operating out of a garage. (I'm sure Linux doesn't really operate out of a garage but you get my point)
Of course nowadays Linux is as safe to install and as stable as the ground we stand on - unless you live on a faultline. But some people still see it as a risk and if people were to understand that, open source would take a great leap into being the future.
It's like two storey houses. I bet the first people to build houses with more than one storey thought it was a huge risk because the floor and ceiling could fall down and every possession they had would be ruined. And more often than not it did. But with Linux, the ceiling isn't going to fall down.
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