What do you have to do with the diet? Children at 3-4 years are never tolerant or polite, in principle, they only learn! Not so long ago, they learned to connect sounds into clear speech, learned to think and reason, and they are interested in ALL! And why uncle’s a different color? For me, at one time, the same replica of the older daughter was the reason for talking about the fact that people are different, but they are all HUMANS. Thanks to that black boy in the tram, who laughed amusedly at my little boy’s assumption that his uncle hadn’t washed for a long time, he turned black. I, of course, apologized for the child, and then we talked to her for a long time, but thank you, a student of the political school, for not offending the child and translating everything into a joke.