I have kids and guns and I don't trust this technology to work when it needs to work, both in a defensive scenario and with my kids. Keep-It-Simple-Stupid.

Basic gun safety dictates that a gun is always loaded, even if your fingerprints don't match.

There's a theory behind handguns like Glocks that manual safety switches are too complicated when you're experiencing the intense response of a defensive shooting. Taking gloves and jewelry off, adjusting your grip, or the nightmare of having to screw with electronics is just asking for problems.