As parents we have this overwhelming and sometimes illogical need to protect our children - it's something you will understand when/if you have kids someday.
I am a horsey parent and am nervous of my kid riding. It's one thing for my butt to leave an imprint in the dirt - but no way on earth should hers! I know that after I pick my dignity out of the giant mudpatch on my arse, I'll be ok - but what if my daughter isn't?
Stop for a minute, open your mind, learn. You may not agree with what I say, I may not agree with what you say but we will both learn something new.