Why don't more outdoor venues have wire mesh as a precaution against lightning?
I was recently thinking about Ottawa's Canada Day celebrations. I don't know how probable they thought a thunderstorm was, but if someone got hit by lightning before they could get to shelter that would have been remembered as tragic, rather than the "amusing story" people remember rushing to shelter during the storm as being. Why don't they have wire mesh around these venues to act as a sort of Faraday Cage against lightning strikes?