I'm running as usual. I did a half marathon 5 weeks ago, so a 7 mile rural loop from my front door is my kind of normal, and once out of my neighbourhood I saw less people than I would on 5k looping through my neighbourhood. It is my normal to spend 1-2 hours running a few times per week, and at the moment, it's valuable headspace from trying to homeschool two DCs one of which has ASD, dyslexia and dyspraxia (and cannot afford months off learining routines in several ways)
Any locals touching the stile or gate are more likely to catch the virus from the same supermarkets that we use. It's not a honeypot and while I have actually seen other runners this week, it is still very, very quiet and easy to distance.
Some MNers seem to want a fast-track to martial law and are getting very frothy with people breaking invisible rules and guidence that do not exist in the UK, and are frankly behaving like my children do during a game of monopoly, inventing rules and getting stropy because someone else landed on Mayfair first 
15 minutes slow walk is not exercise to my body; it won't get my heartrate high enough to register in any cardio zones. Being fit, it takes more time and intensity to maintain that fitness. If I'm going to go down with a respiritory infection, I want to keep my lung capacity good and my body healthy!
I'm keeping my distance, it's near a fortnight since I did anything social, I am following the rules and guidence given, but I will save hard lock down only for the time if/when the government says it is required because physical health and mental health are important too.