It's a virus. You aren't "weak" if you get a virus, it attacks literally anyone. There was a former TE from the 97 Michigan Wolverines that got it and had to be in the ICU. Little kids can get it and die, old people are the most likely to die. The point of all this is to PREVENT the most people from dying.
If we did your method; hospitals would be overrun with patients rural or urban. People who would otherwise beat the virus with treatment would die because the hospitals were full. Doctors and nurses who are in short supply would get it and die. That's just the first wave. The second wave will coincide with the regular flu. Healthcare supply chains would be fragmented so the normal flu vaccines would be in short supply, which would also kill thousands because of lack of ICU beds and ventilators. These waves would not stop until you A: Got a vaccine, B: Get a viable treatment, C: Social distance, D: 75% of the populations get it. It sucks, everyone wants to go back to work and go back to normal. I have a baby that's due in 2 weeks, do you think I want my wife to give birth in a hospital overrun with Covid patients and understaffed because of doctors dying? I also have elderly grandparents that I would like my child to meet. Get out of your bubble.