I don´t think the lyrics are childish - it´s a rock song, and not a scientific thesis! And it "hits the point"!
And by the way: I think Mick is actually interested in politics, he wrote a lot of more or less political songs (Salt of the earth, sympathy for the devil, street fighting man, sweet black angel, Lies, Indian girl - a horrible song, otherwise, Undercover, Back to zero, Let´s
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