Isolation for double jabbed has already been done away with here (Jersey Channel Islands) and children at nursery or primary school who are direct contacts can go straight back to school after a first negative test. For secondary schools it's been cut in half to returning to school after a Day 5 negative test (most of our current 370 cases are in that age group and/or in those who've only had 1 dose)
Relatively speaking, our case numbers are high currently (mostly the result of half term holidays, both locals going away and tourists coming in) but fewer than 10% of those have been double jabbed, so clearly in our 60%+ of the population being double jabbed is the vaccine is doing its job.
Having said that, the uk turned red again 3 days ago, so while double jabbed tourists only have to isolate until a Day 0 negative test, single jabbed and most children have to isolate for 10 days.
We've also been mask-free for nearly a month, schools went back on Jan 11th and all shops, restaurants and close contact services were fully open by around early March. We've only got stand-up drinking at the bar and nightclubs to go. Everything else is normal, and most importantly no-ones panicking by only looking at the headline case numbers because the nuts and bolts details show there's no need to.
Having said all that, there's no doubt that closing the border for 3 months when this all started gave us the head start for us to be where we are now. But hopefully the uk will soon be more where we are.