Take a look at the provincial breakdown. The Atlantic provinces are in a position where kids are going to school, restrictions are being lifted, and the number of cases are in the single digits per week. For the most part, there is not spread within these provinces so efforts can focus upon verifying that people coming into the province aren't infected and ensuring the population complies with far less extreme measures so that the virus does not gain a foothold in the region yet again.

Even parts of the country with a far greater number of infections than the Atlantic provinces are seeing numbers stabilize (e.g. Alberta) or decline (e.g. British Columbia). This is not the case in Ontario, where the spread is essentially uncontrolled. Measures need to be put into place because the living will continue to suffer as long as that spread is uncontrolled, and yes the loss of life matters as well. A few weeks to stabilize the situation will ensure that lives are not lost needlessly.

Online kindergarten is a disaster. 1st & 2nd grade only slightly less so. A little older than that and things get a little easier, but that's only if the kids actually have halfway decent resources. My kids are slightly older than that, manage the school work okay, but are suffering otherwise due to the isolation. My daughter has been in tears multiple times because she doesn't get to see her friends. I bought an Oculus Quest so they could play Rec Room and have some semblance of social play & interaction.

I live in a diverse area with lots of working-class people: It's not uncommon for kids in my school district to be using their parent's old phone as their online portal for distance learning. It's also not uncommon for parents who must work & can't afford child care to have an elderly relative watch their kids. Relatives that aren't always fluent English speakers, and often aren't equipped to help a kid navigate a curriculum spread across 5 or 6 different electronic systems.