Muhammed
Diamond Member
I don't recall anyone here arguing that cast iron pans are indispensable in the first place.Your anecdote doesn't make a cast iron pan indispensable to anyone, since as you pointed out restaurants can turn out great food without them.
Of course when a professional cook is cooking at work their primary motivation is to maximise profit, which sometimes means sacrificing quality in favor of quantity.
But when they cook at home for their own family, quality may take precedence over quantity.