I always think sand is worth looking at at least once, lol. Get a hand lens (like $10?) and check it out!
Also it’s probably pink not because of garnet but because of the oxidized bedrock. I’ve seen a ton of stuff that looked like that on the shores around the Lake Superior and it was usually some form of basalt, rhyolite, or rare sedimentary interbed. You’d probably see a bunch of smaller reddish pinkish sand grains along with darker gray ones and maybe some milky quartz. But IIRC Canadian Shield stuff is pretty diverse and I recall there being some gnarly meta stuff out there so you might find some glittery mica and garnets.