Toy guns ARE NOT everywhere.. please give evidence of this.

If popular toy stores  (retail, bricks and mortar) generally  don't sell toys guns (excluding water ones), then children who visit these stores with their family.. won't see any there and won't be saying 'Muuuuuuuum  I want that gun'. How many under 18 yo's purchase items off eBay?. none. Will a parent purchase a toy gun off eBay if their child doesn't even know they exist or never asks for one?