In April dd2 had a temp by the saturday after half term
By Apr we would have had about 5 tests as a family
In 2019 sept to dec
We would again have had at least 5.
Also people tend not to get symtoms on the same day so for eg in dec dd2 got a temp mon then by thurs i had a fever then dd2 a cough. So even if dd2 tested neg so could have gone back by thurs then i would have to get tested and us all be back isolating. And potentially 4 trips to testing centres
The gov will run out of tests and bubbles will continue.