Are you wearing your poppy right

Today I saw a man distributing poppies stop a lady and ask if he could reposition her poppy. While doing so he told that lady she should wear the poppy on her left side (over her heart); the red represents the blood of all those who gave their lives, the black represents the mourning of those who didn’t have their loved ones return home, and the green leaf represents the grass and crops growing and future prosperity after the war destroyed so much. The leaf should be positioned at 11 o’clock to represent the eleventh hour of the eleventh day of the eleventh month, the time that World War One formally ended. He was worried that younger generations wouldn’t understand this and his generation wouldn’t be around for much longer to teach them.