Welcome @johnandthom! Great points! Do you carry on you when you’re at home? That may be a great way to keep it secure from little hands.
There was a conversation on the Community about biometric safes, but it’s not exactly a glowing review for their use: Biometric fingerprint ID
However a small safe - biometric or not - attached to a piece of furniture or cabinet may provide a solution for keeping firearms secure for you at this point in your family’s lives.