What primary sources in particular? Schools? Workplaces? We don't have CERB anymore, the country can't afford to continue these benefits. So we throw 100s of thousands of people into unemployment while their workplaces are closed?
If we close schools, then parents of school-aged children are forced to either quit their jobs to stay home with the kid, or find some other solution that doesn't involve a third party babysitter. So what would it be? Lock the children in a room with a bucket? Realistically, it's going to be parents bringing kids to work, just like how it often goes for PED days or unexpected school closures. And that's not any better than having the school open to begin with.
I'm not saying the solution now is ideal. It's clearly not. But what else can we do? We can't afford to supplement incomes forever, we've already used that war-chest. This solution is the best balance we have, for now, assuming that everyone follows the guidelines. I guess that's the hard part. We need the government to play babysitter because we can't be left to our own devices.
I mean, governments implemented more stringent lock-down measures elsewhere which managed the spread of the virus far more effectively. Surprise surprise, their economies also recovered far better than ours have.
I get that there are constraints, trade-offs, and opportunity costs depending on whatever choices the government seeks to implement. I'll event concede at this point in time, it's increasingly less feasible to implement more total lockdown measures for any significant portion of time for some of the reasons you suggested.
That doesn't absolve the government's completely botched response to this pandemic, which was ad hoc almost the entire way, and never bothered learning and implementing measures that were clearly successful elsewhere.
The government chose to deal with the pandemic since its early stages to the present day by allowing it to spread. We can see how this approach failed in almost every single Western democracy, and why it was simply one of the worst possible approaches to the pandemic. You can keep ICUs manageable for a while with partial lockdowns and gradual re-openings, but as long as the primary sources of spread are open for long enough periods of time, it will get out of control eventually.
Of course
now, it's far more difficult to implement things we know have been successful elsewhere, and that's not the population's fault, that's the governments fault.
No amount of compliance from the population would have changed that. At this point all we can hope for is for the population to be sufficiently vaccinated in order to return to some semblance of normalcy. But that didn't necessarily have to be the case.