You do know it is totally legal, and your right, to open-carry on your own property. If someone calls, the cops would ask if you are on your property, and maybe come out to make sure, but would not be able to do anything to make you disarm on your own property. I understand being safe around the boys, but firearm education is the best thing for them. Not trying to tell you what to do, just my opinion.
I am teaching my boys gun safey. But when they are together they do everything they have been told NOT to do. I don't trust them to respect the guns if they don't respect the rules. As for open carry, most of my immediate neighbors wouldn't care. The problem is some people would raise a fuss because school buses drive by and a few older kids walk by on their way to school. It may be legal to open carry on my private property, but some parents would go ballistic and call the sheriff. The sheriff would probably get annoyed and give me a hard time even though it's legal.