JE you say "The risk of catching the virus now is very small. I read that only one person in 1,700 is infected now." When the virus first reached this country, while people were mingling unsuspecting and unconcerned, even fewer of the population were infected - hardly any. Because everyone was close together and not observing any distancing or other precautions, it spread rapidly around the people they came into contact with.
There was a reason for keeping 2 metres apart - anyone coughing, sneezing, or even puffing and panting (joggers?) in your direction sends droplets that far in front of them. Further than that the droplets are more likely to fall to the ground. Stay apart and stay safe. Wear a mask if you are going to be closer. With small children, make the mask a game - children will accept it if it is fun.
Now that the first wave of infections has subsided because though it has not been totally observed, lockdown has ensured most people at least do not get as close together we are back to the situation we were in at the start of the year. The whole cycle could restart if we all get too close to one another again.
THE VIRUS HAS NOT GONE AWAY. IT IS STILL CIRULATING AND THE MAJORITY OF THE POPULATION HAVE NOT YET HAD IT. DON'T GET COMPLACENT.