I don't see this as any different. We have to do what we can to not die - stay healthy, wash our hands, isolate if you have symptoms etc.
Trouble is you can't force everyone else to wash their hands and maintain good personal hygiene, can you? You can't force everyone else to self isolate if they have minor symptoms.
The moment you walk out of your front door, some arsehole could sneeze on you and that's you infected.
People can mitigate most other risks. You can actually look around you when crossing the road, wait for cars to stop at traffic lights, only cross at pelican crossings, etc etc - to reduce your risk of being hit to almost zero. It's VERY low risk that a random vehicle will mount the pavement and plough into you.
If we return to somewhere near normal, people will soon stop washing their hands, people will soon stop trying to catch coughs/sneezes, people will soon stop trying to keep 2 metres apart, and we'll be back to exponential growth.
It will actually end up MORE dangerous for the vulnerable, elderly, etc. At least at the moment, most people are complying, so if they go out to the shop, there are few people around and most people will comply with the 2m. When more people are out and about doing normal things, the elderly and vulnerable won't be safe anywhere except locked in their own homes, and even then, the people delivering supplies, medicines, doing home repairs, etc will be more likely to give them Covid because they're wandering out in public with everyone else again.