For my 3D persona Hopeless Motion I created a robot to help with Social Distancing.
You can buy them for your government or private security team starting from 48 rolls of toilet paper per bot.
Social Distancing Bot uses a mix of distance detection, verbal warnings and force to keep your citizens seperated. When Social Distancing Bot sees 2 citizens approaching it will preemptively jump into action.
Europe: 2-3 days
Asia: 1 week
North America: 666 weeks