@Squeakypotato, I would welcome clarification from scot.gov on where people are contracting it in Scotland.
People I know who have caught covid-19 caught it by,
Christmas shopping two days before Christmas in Glasgow (2 hours away from home and passing through many LA)
Not wearing mask at work and repeatedly being reminded to do so.
Hot desking at work.
Not maintaining socially distancing at work from colleagues in staff room and not wearing PPE when work necessitates close contact.
Visiting 80 year old elderly relative in house as it was her birthday.
Allowing family (who were waiting on results of a COVID test) to visit and stay overnight to celebrate Christmas Day.
Going for a walk with friend and not socially distancing.
Like everyone I can only talk on my experience, unless someone can direct me to any factual publications which states where people are contracting COVID-19
By the Scot.gov action of continuing with the restrictions and the implementation of a lockdown and closure of schools it does suggest to me that people are not abiding by the guidelines and this is contributing to the spread.