The folks that have already gotten the virus were the ones out and about and will have a higher chance of getting it. Those that “stay at home” (well, I did visit the neighbor once, and got gas, and go to the store every two weeks...) are reducing their chances of getting it, but I think with as virulent as Covid-19 is, it will be pretty difficult to not get it.
So Lets say it takes 20 trips out and about to get it. Even folks “staying at home” for two months are probably at the 20 number by now. But - it served it’s purpose to flatten the curve. It was never intended to be the cure. (I’ll need to work on that rhyming.)
At this point the shear numbers are with the stay at homes. Plus a lot of these are apartment building dwellers, sharing the air, elevators, hallways, etc., with their infected neighbors—if not with their own household members as well.
If the average home has 3 people in it and the virus infects 100% of household members one 1 member gets infected and if only 1 of the 3 members ventures out, then this would be the exact expected result.