It's often not really possible to contradict or contribute to The Science as an outsider, as access to the equipment, samples, and raw data is not available.
Deep understanding of a particular field is something altogether different, and is not what I mean when I talk about capital-S “Science”. For that, you need either grad school or a lot of study.
My family was very scientifically minded, and it has also taken me many years to realize what 'science' is.
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Your comment sounds to me like "I've won the lottery and I don't understand why everyone else hasn't". Yes it is possible to understand a lot of things about science at an early age; however I do not think very many people have a deep enough understanding of sociology to understand all the implications of public discussion of science.