Woulden't it have made the show more eccentric and better if both brothers had Red Hair instead of orange hair ???

Red is the rarest hair color in the world, and even if your hair is red, it's often blondish red (like the Petes) or brownish red (like Ferguson on "Clarissa explains it all") rather than pure red. Finding two blondish red-haired boys, who both were able and willing to act, sounds like incredible enough to me.

Yeah i dont think its possible for people to be born with Red hair but i think i have seen a few people in my lifetime with red hair but i think they just dye it Red i doubt it was their natural hair, i work at Wal-Mart and i saw some Red,Blue,Green,Purple Halloween spray paint for the hair i was thinking to myself why would anyone in this universe want to spray their hair that color even for halloween thats weird lol