Other countries are closing schools, cinemas, pubs, restaurants, cafes, playgrounds, parks, etc. Anywhere and everywhere that people can gather.
Therefore the only possible conclusion is that our government is ignoring the combined expertise of all the rest of the world.
It makes not a jot of difference whether they looked at it and ignored it, or just ignored it - the result will be the same.
Tomorrow there will be 25%+ more cases.
The day after 25%+ more.