"It doesn't matter how you see it and your little confused face isn't needed."
The OP's question invites others to share their opinion, in the absence of specific government advice (what the BBC man said doesn't count as government advice). Emojis are available to be used in posts.
"Exercise/fresh air once a day is encouraged."
It is allowed.
"It is also encouraged to exercise in quieter areas."
Where/who is encouraging this? The government text says "Stay at home"
"Being stuck in without getting any fresh air is bad for health, physical and mental. Going out once a day, as long as you practice social distancing is healthy. I could keep my children in for the foreseeable future completely, but I care about their mental health too, and want them to get some vitamin D and fresh air, which helps to boost their immune system."
All true. However as I have asked, does it have to entail a drive. Despite all care, is there a risk of people spreading outside their local area?
"I imagine OP feels the same."
Oh wait, is this an opinion??