I'm designing one for my back yard, but the issue I am most concerned with, and not yet mentioned, is overhead and nearby trees.
Any falling debris/limbs, etc could cause things to go sideways fairly quickly. My current design will be in a sunken circular pit with seating surrounding a center fountain.
It will be propane fueled fire pit, as its strictly for cosmetics.

Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.