I can understand startled and uncertain. Those are experiences and require no explanation. And given the newness of cultural openness about LGBT issues, very understandable.

That said, certainty when asserted as a rule or law of nature does require explanation. In this case, I doubt any explanation offered would hold water, but that's an empirical issue.

>>>They will grow up without a prejudicial bone in their bodies. I wish I could say the same for many of the traditional moralists whom I encounter.
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>Alternatively, perhaps people can be excused for feeling startled and uncertain if they're not used to seeing a bewhiskered balding Jim (no offense intended!) transforming into a beaming raven-haired Janis! Wow. IMHO: lets give each other time to think it through.