I grew in mostly multi-ethnic areas with friends of all colors and backgrounds. I was an Air Force brat and the military had been desegregated for a decade or more before I was born ,so on base and in the surrounding area there were all kinds of people. I don't recall my parents ever using any sort of racist language when I was a kid. Of course when we were in Japan we were a distinct minority.
We did go to Sambo's Resturant, though IIRC the character became an Indian in the story books by that time. (probably not an improvement) I do recall reading a version of the story somewhere with a black Sambo and thinking why would there be a tiger in Africa? Even as a kid I was a nitpicker.