I would argue than anything that systematically discourages people from participating helpfully in our species' march towards understanding is dangerous.
Well, dangerous might not necessarily be the right word, but destructive, or, counter-productive definitely fits.
One of the most, if not the most, worthwhile things that we do is experience, appreciate, and understand the world we live in.
I appreciate the irony of this phrasing, but it is almost sacrilege to do anything that would interfere with understanding of the most complex, and most interesting thing that has ever existed.