- I hope the regulations above are not widely reported by the media or the lockdown will be a waste of time.
The central message is that people should be staying at home at all times for the duration of the lockdown period, unless they are a key worker, cannot get a food delivery slot or cannot exercise at home.
If they absolutely have to shop or exercise outside the home, this should be done as infrequently as possible. People should not be going in and out of their houses multiple times a day.
Hopefully people will abide by the spirit rather than the letter of the rules, even if that requires a degree of societal pressure. We should all be encouraging family, friends and neighbours to stay at home as much as possible, and holding them accountable when they overstep the spirit of the rules.*
Jesus, I don’t even know where to begin with this.
I can’t believe you want people to be ignorant of the law. 
That is not the central message at all! You don’t get to put your own slant on it. The legislation is extremely clear that people can leave the house to go shopping, for exercise, or outdoor recreation. Nowhere does it state or even imply people can only do those things if they cannot do them from home. It doesn’t say only keyworkers can go to work. It says they can go to work if the job cannot reasonably be done from home. So even if you are a keyworker and your job can be done from home, you should stay at home. See how knowing the legislation actually helps.
And as for your final paragraph, people should abide by the legislation, not by some busybody’s interpretation of it!!