Oh dear, they'd lock me up and throw away the key!!
DD gets, every morning that SHE asks, some of my lemon tea and she has one cup of cordial a day, she's not a fan of fruit juice though (I think its TOO sweet and acidic for her liking).
As a child I was allowed most things, and I turned out ok. Im not too worried personally about what she intakes caffeine wise (and within reason of course-I don't want people to think I don't give a rats!) but more concerned about WHEN in the day she consumes it......not sure why though. Im more of a moderation type parent-that uses lots of dialogue to explain things, and lots of expression to demonstrate....*imitates holding a sore tummy from TOO MUCH juice*