Oh, that's all right then. Never mind all the people that have already been charged for games that square won't let them run for no reason whatsoever. Or the people that prefer to order from overseas because they get gouged in their own country. Or people in Ireland picking up a UK copy from a local shop, and getting home to find steam won't let them install it because they're in the EU... etc, etc.
But no, region locking is definitely something the PC needs more of.