It doesn't matter what colour poppy you wear - Rememberance Day isn't about the politics of past or present wars, it's about the people involved. I've been fortunate enough to not lose any close friends or family, but coming from a military family, and serving myself, I take time to imagine what it must have been like for my Grand-pa to be in a trench on a Burmese hill, getting shot at. Or whether there's anyone thinking of his pals who didn't get to come home.
Let them wear whatever damn colour poppy they want, as long as it's for the right reasons - to say 'thanks' and to try and make sure that we try not to repeat the mistakes from our past.