With respect , they aren't maintaining it, they are paying lip service to it.
The UK is policed by consent, so the police would be unable, or unwilling to act like their French, or Spanish counterparts, so it's unenforceable.
The vulnerable parts of society will still self isolate, and the lock-down has to be responsibly , and progressively eased , or your Children, and Grand children will be financially ruined for years.