Are we pinning our hope too much on the vaccine?

We all (I hope) agree the vaccine is making an enormous difference to the impact Covid has on our lives, and I certainly hope that while zero-Covid might be a pipe dream, we should be able to manage the virus in a similar way we now cope with severe flu, bronchitis and pneumonia in all but the very old or frail.
But, and is a big but, we are glibly talking about “opening up” international travel, dispensing with social distancing, and ditching the wearing of face coverings. In other words, putting all our eggs in the vaccine basket.
The easing of the above measures would make life seem much more like the normality we last knew 15 months ago and it would be lovely to believe we can put Covid behind us.
But we can’t.
I worry, are we becoming over-confident and over- reliant on the vaccines we have and their continued availability. I am assuming mutations of the future are already being planned for in immunology labs all over the world as if the virus were to mutate into something much more severe, I fear we could all be up a gum tree.
#justthinking