I wouldn't move unless I was paid at least double imo. The cost of living in the US is deceptive, particularly with kids.

Education in the US is such a fucking stupid system and Canadian universities are exceptionally competitive (especially for research for e.g. grad school).

Healthcare is even more stupid and even with pretty good insurance, the deductible+copay costs are crazy.

Transportation is just strictly bad because of terrible urban planning in most cities.

You end up working more hours, you will probably have to commute for longer, and the homeless problem is somehow worse (which I didn't think was possible).

It's all solvable with enough money, but that isn't enough money to move.