I am guessing they are not talking about their sexual predilections so must be referring to the housing style. My guess is if you don't like sharing your food with bugs, lizards. mosquitos , possibly bats and tokays then open living is probably not for you.What do you mean with "open living" ?
Mind you , even with walls and doors , the aforementioned still find a way in , just takes longer.
Not to mention the AC has zero chance of keeping up.
Cheers
Ken