Of course.If you're willing to take that risk with your kids, that's your choice. My kids, my choice.While I understand your concern, there's abotu a million different ways to effectively deal with this issue other than not having a gun.
But then... the more you teach your kids about guns, the less likely they are to have an accident. This applies to your house as well as others, where there may be guns; the argument could be made that to teach your kids how to safely handle a gun in an are appropriate manner is to teach them a skill that could save their lives and those of others.
At least that was true back in those eeeeevul olden days when kids were expected to respect authority, to take responsibility, and your self esteem took a back seat to getting the chores done. I was taught to clean and load a rifle and shoot straight by the time I was 8 yrs old, but that came with expectations that you didn't touch the gun without parental permission and you would use it responsibly and safely when you got permission. Apparently we all did as I don't recall a single gun accident or incident, other than the very occasional minor hunting accident, in all my growing up years. And in most of those years, there was a loaded shotgun mounted over the mantle.
We all had toy guns too and played cops and robbers and Cowboys and Indians throughout the neighborhood mowing down probably thousands of bad guys over the years. And I can't think of a single one of my friends or classmates who grew up to be a violent person.
Banning guns is not effective in creating a responsible society. Expectations of personal responsibility, respect for the law and authority, and peer pressure to be a good neighbor and grown up does create a responsible society.