Im not calling people thick and stupid if they need to get to work. Nobody is telling people not to go to work, unless they are ill, and I totally agree that SSP provision is dire and untenable.
Its those adults who are still mixing in the evenings, meeting up, going to claases and increasing the rate of spread.
Because, if you are talking about preventing yourself getting the virus AT ALL, then yes, it probably is a bit pointless. However you can do something about slowing down the rate at which it happens, and that precisely what this social distancing is about.
They wont close the schools right now (although I believe that will change by the end of next week) because the schools being open is a controllable relaese of the virus into a section of society. And as each child brings it home, that family will self isolate. Children and most people wont generally be affected. If someone vulnerable is in your household, then work out the risks of keeping your child at school or not. If its your mum who is vulnerable, and she doesnt live with you, then you shouldnt be visiting her anyway - she should be in isolation or extremely stringent social distancing.
But going to the pub, going to the gym, going on holiday cos the schools broke up, playdates in the park and coffee meet ups. That is thick and selfish.