Wait, because it doesn't kill 100% of the people it's therefore not a significant risk to an older person? That's a hell of a take.
And you're speaking as if yo know the exact mortality rates. we don't. The data on this virus sucks right now. We also don't know which kinds of elderly folks are most susceptible.
So if you don't know, you take measures against it. Put it this way, would you expose your grandparents to it? If the answer is no, then don't do it for anybody else.
Honestly man this is one of the dumbest ways to think about any situation like as you could possibly have. It's this way of thinking that will wipe out half the human race when a truly deadly virus does show up. Why? Because you didn't jump on it early enough.
And How good are you at predicting viral mutations?
Again, when you don't know, you pull out the stops until you do know. It's never a good idea to 'wait and see' with a viral outbreak. This is what dead people did.
EDIT: Lot of people on this thread like "oh this is way overblown yada yada ya'll gonna be the first ones to check out when a full blown killer gets out. will be interesting to hear your take when you're dead.
What we have here is an interesting test case for how to handle response a much more serious outbreak. We are currently failing the test.