Last I heard, New Zealand and Australia were planning on closing their borders for a long time except maybe to each other, because they seem to reckon that's the only way to preserve relative normality within the country: https://www.bbc.co.uk/news/world-asia-52540733
Yes, the borders are the big (yes, very big) exception to "normality". But even that will pass when there are effective treatments or a vaccine. This won't go on forever.