How many of you members would run in there knowing you would die?
Don't know about you, but I could never live with myself if I did not try. Even a distraction could save a life or two till the cops got there.
I work in a High school. We have active shooter(nowadays they call them violent intruders, supposed to not be as scary) drills regularly. We are told it is not our job to stop the threat by going to the shooter offensively, only to protect the kids from the threat defensively. I tell them, stopping the threat as soon as possible is the best way to protect and going towards is faster than running away. I think it's a liability thing really, so remaining family members cannot sue, claiming "he was told it's his job!".
As for SROs. The Parkland Florida school shooting was a prime example of most SROs. They generally are not the best officer on the force, nor the best Marksman.(which is what most of us would want to protect our kids). Our SRO would probably push kids out of her way to get to cover. She is only in the building a few hours a week and spends time at 6 other buildings in the district. Most dangerous thing she generally is exposed to is getting sunburned while handing out candy on the playground. That's why we need to arm and train responsible staff. Those staff that do not wish to be armed, need to be trained in "stop the bleed", and Triage, so kids don't bleed out from an otherwise non-mortal wound, waiting for the building to be cleared, so EMTs can enter. Most buildings are very secure, but as was shown in the last shooting, doors can be breached. Kids know all the "weak" spots in the building they attend. They know the lunch schedules and recess times when doors will be open, if even for a short amount of time. We have "bullet resistant fillm' on all the glass on ground level. Will not stop armor piecing ammo, or FMJ from high powered rifles. Thus the glass can be breached and the mandatory panic bars on the inside of the doors, accessed. Easy, Peasy.
School/Mass shootings are never going away. The will just continue to get worse as long as guns continue to be so deeply ingrained into our society. It is the price our kids will have to pay, and something we have to accept, if we insist on keeping access to firearms as easy as it is. The price we will have to pay, just may be our life, in order to protect our kids under those conditions. If you cannot accept dying in order to protect our kids and your rights, then you don't deserve any of either. JMTCs.