You are entitled to disagree, about whatever it is, about the age discussion you are finding issue with. That doesn’t however make you any less wrong about many (most?) AFOL oriented shows having an age limit of some kind. As for ignorance, whatever are you talking about? Are you responding to me and what exactly am I…

This is exactly why most LEGO shows (conventions) that I’ve seen advertised have an age limit (see AFOL shows anyway) and or better methods of preventing onlookers from reaching the display. And that much work usually gets the Kra’gle anyway. What that guy was thinking we’ll probably never know.