Morale
You should speak to people who were around then, like my Parents, as schoolkids.
All stuff about 'the Brits will panic'.
About what? Is more frightening to know that a small force-soon to be crushed, bunch of German troops are on the soil miles away from you?
Or that this nights bombing raids might get you?
You've already seen friends/relatives bombed out-killed and injured.
In fact, there were great concerns then that the German's already had troops here, maybe in British uniforms.
And if the population were so likely to be blinded by panic, explain how the call for 'Local Defence Volunteers' (soon to be renamed the Home Guard), had such a massive response, the authorities were completely overwhelmed.
They expected a few tens of thousands, WW1 vets and the like. What they got was many hundreds of thousands (was it even as much as a million?), from all walks of life.
Who were prepared to volunteer to go up against these 'invincible' Germans, with little training and for a long time, even less equipment.
With in most cases, presunmably, the consent of their loved ones.
That really answers it I think.
And the kids who'd be my parents?
Go to school as usual (don't forget your gas mask), if a V1 buzzed over the school sports day-as it did for my Mum, hit the ground......it's gone, so carry on as normal.
Family from the East End of London bombed out-so are squeezed in to live with mum's family, in the 'safe' haven of Langely, West of London.
Right next to the Hawker factory building Hurricanes.
Dad's family-like mums, could not bear to have the kids evacuated, though they lived right next to Northolt-a major airfield in the Battle Of Britain.
People just largely got on with life, feeding a family with rationing, that took a lot of attention on it's own.
They expected, in 1940, an invasion, were surprised when it did not happen.