The police here have in some cases been acting with ludicrous heavy-handedness, such as posting drone footage of 1-2 people walking over an empty moor, claiming they shouldn't because it's "NOT ESSENTIAL!". The actual laws actually seem quite reasonable, and leave room for common sense - hopefully the police will stop this nonsense, or their behaviour may cause people to lose respect and start flaunting the rules.
I believe it's the same situation across most/all of Europe now.
This difference between the law and the government guidance seems to be causing a few teething troubles as police adjust to it.
The reason you need to wait so long is to prove its efficacy. By definition, you make a vaccine to give to everyone who is healthy and does not have the virus. So the absolute worst possible outcome would be to inject 95% of the population with a vaccine and discover in 6 months that it causes some horrible side effect.
This is a bizarre misunderstanding of the vaccine development process.
The catch will be if we attribute a drop off in hospital admits as successful containment or as the result of natural immunization/ herd immunity.