I absolutely refuse to use a cereal box camera. And you can't make me!

Maybe you need to buy different cereal. 
Au contraire mon ami, why be so judgemental concerning what a neophyte should buy.
Judgemental? Nope, merely offering an opinion based on years of experience in other endeavors, similar to photography.
Well, who sets that "starting point"? I say the only person who can say what the best starting point is will be the one making the decision. And why not a 5D if the person decides that it fits within their budget? Who can possibly judge them for getting a fine camera? Do you seriously believe that a person would be disadvantaged in any way by buying, say, a 5D with a "kit" 24-105 L lens over a Rebel and kit lens? The 5D is, in fact, as easy to learn and use as a 20D or a 30D...
Now, if a person introduces his/her desire to enter the DSLR realm with an indication that they are on a restrictive budget, then I have no hesitation recommending a Rebel or a used 20D/30D whatever. But some of the arguments and judgements against buying high quality gear lean into arrogance, IMO. A person who is serious about learning and developing photography skills/understanding can learn just as easily with a 5D or a 1D and can grow into a body they won't feel compelled to unload within a year, and can benefit from the advanced qualities of those bodies sooner rather than later.
There are, of course, people who just want an advanced point and shoot camera, who aren't serious about "serious" photography, who won't want to read the manual, much less delve into photography books and tutorials. Those people would probably be best served by an advanced point and shoot such as the G9 or the S5 IS and I'd have no problem nudging them in that direction. And, someone who says something like "I don't want to bother reading the manual, could you tell me what it says?", well, when I loaned my son my 30D not long ago, I helped him get started, but then his homework assignment was to read the manual once through while taking some practice shots. Then ask me some more questions.
I understand what you're saying but I firmly believe in the building block of learning, which means starting out with the most basic tools. I've seen it time and time again in my other life where someone undertaking a new endeavor elects to use more expensive (or complex) tools only to quit or fail later on.
However, in the end, this is an endless debate and we all have our own opinions, not likely to be changed by debating on the internet.
To each their own - different strokes for different folks.


