Timo wrote:

It might also have been interesting to find out that Worf is about fourteen in "Encounter at Farpoint", in human years, explaining why he behaves accordingly...
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There's surely no way they'd let a Klingon teenager on the bridge (if Klingons are adults by fourteen Earth-years old, you'd expect them to behave accordingly. Which isn't exactly "mature", but is at least not "teenager".)