@Lockdownbear
See that's my logic, Glasgow shortly followed by Lanarkshire were in Lockdown from September through to Christmas. Restaurants were only open for a short time and limited hours before Christmas.
So surely they know where it was spreading. It has to have been in schools or somewhere else Scot Gov couldn't close like hospitals.
Yes... T & P seems to have given up contact tracing anything apart from "high risk" settings. Which they say are things like hospitals, care settings, prisons etc, education settings (though presumably not Scottish schools any more given the holidays), parties, pubs if you're a member of staff, airports and food processing areas etc. They've totally stopped asking about shops, gyms, cinemas, indoor places like museums etc, hairdressers and so on, seemingly, and didn't even seem too bothered about hospitality as long as you wore masks while walking around

. I'm really not sure what useful information they are gathering about spread from venues at the moment. They will be saying it's spreading through parties and close contacts and so on, because that's all they are asking about!
I don't think schools really were a problem until the delta variant (and possibly alpha, though we never really got a chance to find out, because they closed them!) which seems to spread if you look at someone the wrong way. It makes sense to me, that if (young) children don't splurt out very much virus when infections, cos they are small and tend to be less ill, so less coughy, they won't make much of an inroad in infecting someone where lots of virus is needed, but if less is needed, they could be more "dangerous". Hence why primary schools were being wiped out in May/June, but not so much in August. Plus the children themselves being apparently less susceptible to the original variant than delta - though still less ill if infected. So they moved from being infected incidentally, or just affected by teachers etc being ill, to being possible drivers of infection themselves because they had so many more contacts on a regular basis at school, than the rest of society.