If the virus was still rampant after a proper shut down of ALL non essential things - I mean garden centres, shops that don’t have 90% of their shelves dedicated to food, coffee shops etc. - then that’s when we should shut schools
This is where people need to be logical, not emotive. Garden centres closing will save the day? I took my mum to one in the summer. There were about 20 other people there (large indoor and outdoor space). Staff and customers in masks. Strict social distancing when queuing for tills and drinks. Tables taped off to ensure social distancing.
In September I went back to work, walking to my lessons through corridors packed with kids. No “masks in corridors” rule until after the October half term. Teenagers my size and taller, inches away from me and each other.
If people seriously think that keeping garden centres open is the problem, then they have no idea how viruses work.