Here's what has to happen and will partially happen naturally by itself. People 70 and up and those with compromised immune systems need to go out as little as possible, stay at home. Not going out at all would be best. Everything can be delivered to them through Amazon, Uber Eats etc. They would receive each package using a new set of gloves and would give the packaging a light once over with antiseptic wipes. Meanwhile the rest of society could go on with basketball games and trips to Las Vegas. However they would have to know the following: If they're over 70, they are there at their own risk. Younger people will know the risk is minimal, probably even less than that of dying of the yearly flu. (Already a very small percent in their demographic.) They would also have to aware that they could not go visit a relative or friend in the compromised group without putting on full body protection.
I believe there's no better way to handle this responsibly and yet also with the least amount of impact to society in general.