explain the main differences between communicating with adults and communicating with children and young people
I read your question differently than the others, with "communicating" meaning "speaking to."
I think adults and children should be spoken to about basically the same topics, using basically the same words. [ The difference would be using synonyms within your sentences to clarify meaning, or help them understand words they may not know (see how I did it for clarify there?).
I also think the
detail with which you speak of certain topics should vary between the age groups. Death can be spoken of to 4-year-olds as easily as a 98-year-old, but how you approach it should differ (tangible verses intangible). Children are curious, and the best way to foster their curiosity is the talk to them about everything, making sure not to traumatize them. It's a fine line, but it's how people like Barack Obama are created. (Sorry, political plugs are my thing. I hope even if you hate his politics, you can appreciate what he has made of his life.)
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