I figure that by the time this is over, a minimum of 50% of the world population will have picked up the virus, perhaps closer to 100%. For the majority, they will be asymptomatic carriers. Another large group will experience it as only a mild cough, congestion, and fever.
But the takeaway is that we should all consider that acquiring the virus is inevitable. What is a factor is whether your exposure might occur at a time when effective countermeasures are available. That is one of the big items with flattening the curve - it buys time, as well as easing the strain on medical care facilities.
If there were no possibility to implement effective countermeasures, then arguably taking no measures would be more practical. Let the v irus, hit, spread quickly, and get it over with as soon as possible, accepting the casualties as inevitable, since they would be occurring in either case. And leaving behind a population that has resistance to continuing outbreaks to the virus.