Me? Yes, a picnic, boiled eggs and dukka included! We'll take coffee and cake this week, if the cold sets in.
As pp have said, owners of dog fields, their insurers, have had the ok to stay open. I, along with others, posted the government confirmation a couple of weeks ago. Their reasons: safer, more secluded, keeps small businesses ticking over, and a few other equally common sense reasons.
The usual dog walks in many places are now much busier with joggers, cyclists, families with small children, so many dog walkers are making the necessary adjustments, legally, within the CV recommendations.
You don't have to like it or agree with it. But it is allowed. As with many things that may change, but this week, so far.... it's allowable.