"In practice, people won't be disciplined about isolating vulnerable ones in the first phase, thus leading to disaster." That is the point. One can catch the v

"In practice, people won't be disciplined about isolating vulnerable ones in the first phase, thus leading to disaster." That is the point. One can catch the virus, become asymptomatic then continue to live normally and become even more dangerous to anyone in vicinity ("hug me, I'm safe!"). Eventually most of us will be infected anyway, and some will recover becoming immune (hopefully; this is far from guaranteed), so the correct line of action IMO would be to isolate everyone from everyone to gain time and resources. Nothing would stop them later from making people immune through controlled infection (aka vaccination) when the crisis is over. To me they don't have a clue and just chose the only option that might paint them as still in control.