I don’t think that people who break the rules by eg meeting in a 7 instead of a 6, seeing long-term partners who live elsewhere, hugging their mum or not wearing a mask in the supermarket because while they may not be ‘medically exempt’ it’s still a struggle, are to blame for another lockdown.
Misinformation and misunderstanding however seem rife - the number of threads about people who are told to isolate after contact with a positive case and then not doing so because they get a negative test before the 14 days are up (a wasted test without symptoms), or not isolating for long enough, or isolating ‘except for’ supermarket trips, etc etc.. these are the actions that spread the virus, not making your own risk assessments and using common sense. AIBU?