Matt Hancock has told the BBC that people need to stop taking the pith or the government will ban "all forms of" outdoor exercise. Well, he said it slightly more politely than that, but that is exactly what he has said.
Keep it shortish, sensibleish, and closeish to home or you'll ruin it for everyone. I appreciate some people are mileage monsters and arent happy if theyve not done a ton plus every day, 6 days a week, but a quick 10 or 15 is better than zero miles, which is what we'll all be having soon if people don't stop being twits. It's only for a few months, so just grin and bear it.