
Quoting
eerelations
Completely agree. When my brother and I were children, my parents used to take us out on Saturdays for errands (they both worked during the week, and where we lived, Sunday shopping was illegal, so Saturday was The Day) - groceries, library, drug store, liquor store, beer store, department store, hardware store, etc. No one ever told my father/mother they couldn't buy the six-pack of beer/bottle of wine they wanted because they had a couple of kids in tow. And this was in Ontario! (The place with possibly the most restrictive alcohol laws in the world, outside of Saudi Arabia.)
What the store clerk in this scenario does is up to his own judgment, not the law. If he/she suspects that the person purchasing the alcohol is going to give it to the accompanying minor, then he/she should deny the sale. But if he/she has no reason to be suspicious of this, then he/she is probably legally free to allow the sale.