FFMAN, the problem is and has always been not to overwhelm the ability for hospitals etc to deal with a large influx of patients. That's what all the restrictions were/are about. There's no doubt that if society gets back to "normal" there will be an even larger wave just around the corner. The young may survive but may also be off work for weeks*" when infected. The outcome of that will be just as, if not more, catastrophic to the economy. Meanwhile, the old will die in pain at home or along hospital corridors!
** My young neighbours, healthcare workers, both contracted the virus. They were off work for three weeks.