Many folks here have cited that they are armed in case of a situation like Orlando, or San Diego.
Well there is a REAL LIFE incident that happened in July 2016 in Dallas, Texas.
A Peaceful protest was taking place and there were 100 armed Police officers there to make sure it stayed peaceful.
Also in attendence were 20 to 30 marchers who were promoting Open Carry they all had AR-15 assult rifles.
So, by my count 100 armed police and 30 AR-15s equals 130 (at least) armed "Good Guys".
One gunman opened fire and NONE of the "Good Guys" could stop the guy. NONE.
The police finally had to send in a bomb to blow the sucker up.
Good Guy with a gun RARELY turns out well.
It is most likely much safer to remove yourself from situations that you perceive to be dangerous.
OP - Why on earth would you want to take yourself and family into a situation that you percieved to be so dangerous that you needed to arm yourself?