NY State Government Department of Health provides a lesson in how the Federal Vaccines For Children (VFC) program gets enforced
[This is the US, but I wonder if it is similar in Canada]
https://rwmalonemd.substack.com/p/coercing-doctors-to-buy-covid-boosters
I had to pay $30 US for an I-94 when I was crossing the CBX for a five day Thanksgiving visit to family, contrary to what everybody says so expect to be surprised.
https://waggonerguide.com/canadians-face-stricter-u-s-border-crossings/