I think, at least for AB, that is (or was) one of the primary driving forces behind the low minimum age. Related; children of farmers used to get to start schoo

I think, at least for AB, that is (or was) one of the primary driving forces behind the low minimum age. Related; children of farmers used to get to start school a few weeks later than the children of non-farmers, to help with harvest and such. It's also one of the reasons for the low age requirement for driving license (14 instead of the usual 16). But, at least in mine and my friends cases, we were working for fast food chains rather than family-owned businesses or farms.