I have recounted this before, but I will tell you again.
I know a boy that this happened to. His parents were well established business people. They had a VERY expensive collector type car parked up outside their luxury home, but it was rarely moved.
The boy, about 13 years old was in his bedroom when he heard voices and became aware that intruders were in his home. Terrified, he locked himself in his bedroom en-suite. The intruders came into his room but never tried the bathroom door.
They stole a number of valuables and the car.
This boy was so traumatised that even tho old enough to come home from school on his own, after that his grandparents had to pick him up and keep him at their home until his parents returned. It must have been well over 12 months ago, but he still is very nervius and he has gone very quiet. Withdrawn into himself, I suppose.
I dont know if he managed to call the police whilst they were there ... or just dashed to hide