You wouldn't give their child glitter.
Obviously lighthearted but I thought I was going to be a "Fun Mum" and bought DD1 a load of glitter when they were a toddler. In the instant the first lid was popped I knew I had made a massive mistake and vowed to never let glitter into our house again. But I couldn't bring myself to throw it out because environment so it took years of occasionally dipping into it to eventually, finally, be glitter free.
Then enters my DSis who so generously gave my children a bumper glitter pack this week...for no reason other than that she secretly hates me perhaps?! So I'm now stood in a kitchen which has had an explosion of glitter, having just scrubbed my children's hands to try to stop it travelling elsewhere, and am seriously wondering what counter attack I will launch on my DSis.
So
YABU - Chill out, what's the issue with glitter? It makes your life sparkle.
YANBU- you should never buy glitter for someone's child because it is a form of torture.