My brother ate ketchup on his soft scrambled eggs...I said uuoooch! disgusting!
I eat Spanish omelets, but can't put ketchup on my eggs....
A cousin of mine even puts ketchup in his soft boiled and hard boiled eggs!!!
I always ask them is there a particular ketchup you like with your eggs?
I guess they also eat their Spam with ketchup too..
For me it is no problem if a guest asks for ketchup with their eggs..but I won't touch the stuff!!!