Yes, the world is a scary place and it always has been.
But any teacher knows that drills whether fire drills or any other kind are only scary for children, if the grown-ups make them scary.
Teaching the youngest classes we used to say that the fire drill is held so that we all know what to do and how to get outside quickly IF the school should ever catch fire. We pointed out that this was VERY UNLIKELY EVER TO HAPPEN.
We then practised the part of the drill that could be done in the classroom - closing the windows and lining up quickly and quietly at the door in pairs.
It was done seriously, also when the actual drill was held, but in a light-hearted kind of way.
From my own school days I remember our glee when the fire bell went at the start of a maths class, and the unfortunate occasion when the headmistress was so dissatisfied with the time it had taken us to get outside, that se sent us in again to repeat the drill.
The really unfortunate thing was that my class was having a gym lesson, attired as per usual in the 1960s in aertex t-shirts with short sleeves, our regulation green school uniform pants, ankle socks and gym shoes and we complied with the rule that no-one wasted time dressing or fetching a coat. It was the second week of December and quite literally freezing.
The headmistress took pity upon us to the extent of allowing us to fetch our coats on the way back inside before the second fire drill started!
I have never either as a child or an adult met any child who was scared by these drills, not was I ever frightened when my parents started the sea crossing from Scotland to Denmark by marching my sister and I off to find the life-boat designated for the occupants of our cabin.
To me it has always made sense to know exactly what one is supposed to do in an emergency.