Yeah, so, I'm pretty sure whoever decided "age appropriate and developmentally suitable manner" was a good phrase to use in conjunction with active shooter drillers, proooooooooobably would hate it if someone actually did a study on how those drills have effected kids's development.
My 9 year old tried to soften a lockdown he had in school for me by telling me there could have been a “lawyer” in the school. That made me wonder about the burden kids feel to protect their loved ones from reality on top of their own fear and anxiety.
Active shooter drills started at some point when I was in elementary school in Massachusetts, and it's now been 8 years since I graduated high school. You can literally at the very least survey several ages of young adults regarding related triggers, anxieties, etc.
I couldn't deal with being expected to go into a school and stare at those fucking shields on the wall because when some kid decides I'm the worst and he's got a weapon I'm suppose to transform into captain america.