Not sure two weeks really work anyway. In a large household with lots of space and people living different lifestyles, if someone was infected at the start of the lockdown, not everyone is guaranteed to get infected at the same time. We could end up with someone being infected near the end of the lockdown and they then go out into public and spread it around while thinking everything is safe because of the lockdown. My brother's mother-in-law lives in a basement suite in his house. She has her own small kitchen, bathroom, and external door. She's the type who could end up getting infected and be contagious at the end of the lockdown. Then one trip to the grocery store and now the town has a cluster of infections despite the lockdown.
And there are animal reservoirs. Even if we temporarily eradicated the virus from all humans we would just catch it from animals again and the pandemic would start all over.
