Some people might have you believe that we need to rid US citizens of their arms to prevent bad things from happening, and let the government run the show. I do not bear arms, but I hope my fellow citizens are never forced to give up their rights until the US government is also completely unarmed. Letting the government be the only faction to bear arms the first step towards losing ALL our rights.
We may be in peaceful times right now, but any election cycle could give rise to the next charismatic psychopath who can persuade people to do bad things we could never imagine.
Do not be naive. Know that you and your citizens have the right to bear arms in the event that your government starts getting ideas. If you legally disarm a country's citizens, then the only people with the weapons will be criminals and the government and I don't trust either of those two entities to uphold their morals for our benefit. Not yet at least, I am optimistic about the future.