It would, but governments are being lobbied by bosses to force everyone back to work, so they can afford that 6th or 7th home holiday home.
That really is what it comes down to. The same is happening here...we have a vaccine roll-out, it's already gotten most of the most at risk...but the general public is still unprotected. So what do we do? We open everything back up, of course, so we can have one final spike before we all get vaccinated properly.