Everything including safety hss a price, depends how much you are prepared to spend.
There are "things' that you design to be 'safe' however when it goes wrong lessons need learning, Kings Cross, Grenfell, BA38, Challenger, Valley Parade for example. Improvements are made
I remember a re fit I was involved in and we had Fire Wardens 24/7 even though the fire systems were not offline. For the cost of a bit of man power everyone slept better