Gotta side with my man Superlad on this one. Jon looks white, but that doesnt mean he isnt multiracial or multicultural.
My wife is Native American. Well, she's something of a mutt, but she's 50% Native with a spattering of other random races. Im Euro-white (mainly Irish/Scottish). Our kids look white (she's hails from some paler tribes than what most people think of when they hear the word "Native") but there are certain elements from her heritage that we celebrate that our kids' friends dont. We're fortunate that it hasn't been an issue (no space racists have stolen our children for example) but I dont think my son's friends have had naming ceremonies or done any of the other stuff.
Much like Jon, my kids are exposed to two different cultures. They dont look multiracial but really, looks are just skin deep aren't they? Now, if the racial divide was more obvious then there would be different things they might have to deal with but at the same time they have a small taste of what it is to have each foot in two different cultures.
In the end, my kids are growing up in a similar way as Jon, except instead of Kryptonian traditions they celebrate Native ones.
On a fun side note, one of the tribes my wife came from is the Cree. So I get to call her a "Cree hybrid" and make Carol Danvers jokes.