That may or may not be so, Rain Dog. But if so, the statement needs to be "The Government has decided that is how to balance the competing interests" not "we are following the scientific advice."

Ending the lock down is no simple matter. Unless the public actually believe it to be safe, they may voluntarily stay locked down, to a substantial extent. There is no point opening restaurants, for example, if people don't feel safe going to them. In fact, it will probably cause them to fail, as - probably - the government support via furlough etc will come to an end, and insufficient customers return to make the restaurant viable. Remember every restaurant in the country has a certain number of tables and a planned occupancy. If you reduce the number of tables there may not be enough capacity even if the restaurant is full to cover all the costs. If the occupancy also goes down the business model is wrecked.   A local restaurant has sold vouchers for £100 which will buy £150s worth when they reopen. Good to keep them operating during the shut down, but yet another cost to cover when they reopen.

And that is just restaurants. You could make a similar case for lots of other venues, small businesses and groups. When the lock down ends, I will happily go to visit sites like RSPB Arne. Going to a cinema is another matter.