QUOTE
Its mainly because SCART was popularised by the Europeans, while the Japanese used the simpler and less useful component system...
Sorry, don't agree with that Santa, component can carry HD so it's a lot more useful. If only they'd standardised on 75 Ohm BNC connectors rather than el cheapo RCA's.
Also, big, fat, Scart plugs are impossible to feed through walls, and RGB + composite Sync is an odd standard that causes more confusion than anything else on this forum.
If we're going to standardise let's do it with anything but Scart!
Edit:
And while I'm on the subject, I disagree with the placement of Scart on your otherwise excellent signal reproduction list. Scart has a number of limitations related to its connector, bandwidth etc. which means it is only suitable for SD. Also, progressive scan DVD players only offer p'scan via component outputs.
IMO Scart should therefore sit below the higher bandwidth capable component, because you wouldn't say RGBS is better signal than 576P,etc. via component.