Humans have really a short memory span, what we think it's going to change our lives forever will be dismissed a few weeks later, just as you slow down below the speed limit when you see a crashed car and an hour later you're doing 100 in a 60 miles zone. All those precautions will be forgotten, 99% will forget they have claimed eating their own cooked meal is 100 times better than in a restaurant, they will forget they have sworn never to set foot in a hotel again or to travel to Asia. It might not be this year, but in two years everyone will again travel all around the world, shaking hands, kissing fellow workers, dancing half-drunk on the beach, and drinking from the same cup with the first girl they picked up in a rundown bar.
There will be no adaptation, there will be forgetfulness!
I agree with you that people are going to go back to their normal lives as if nothing is happening, in fact we are seeing this is already happening already in some countries, but I think this is because the pandemic is not as severe as people thought it would be, and even if it is not under control the number of people in hospitals has remained pretty much constant for some time now even if the number of active cases has increased dramatically, however if the mortality rate was anywhere near the black death then I'm sure the world will change dramatically just as the black death changed the fourteenth century.