Batman has contingency plans for every situation.
When Bruce was a young child, he lost his parents in a random violent act of crime. It's a story every comic reader is familiar with, even people who don't read comics know this part of Batman's history. But not many have actually considered the effect this had on a young Bruce Wayne, he was in a situation that changed his life and took away the two most important people in that life, and he had absolutely no control over it. There was no way Bruce could've saved his parents since he was just a child and that helplessness has left a profound impact on Bruce's mentality.
Bruce's intense need for control has been shown time and time again in comics through how he interacts with his teammates or how he treats Gotham itself. Batman has repeatedly taken a role of control over Gotham, only allowing vigilantes to operate in Gotham that he approves of. The lengths he's gone to for control can be seen as rather extreme, such as when he created Brother Eye to keep watch over everyone, or how Batman has plans to defeat the Justice League. Bruce has shown time and time again that he needs to be in control to feel like he has any level of safety for himself or those around him.
This Death in the Family by Jim Starlin, Jim Aparo and Adrienne Roy. Tim Drake was thought to be killed in James Tynion IV's and Eddy Barrows' Detective Comics #940. Damian Wayne met his unfortunate end in Leviathan Strikes of Batman Inc by Grant Morrison and Cameron Stewart when Damian was stabbed through the chest by The Heretic. Stephanie Brown, who was Robin for a time, was beaten near to death by Black Mask in Detective Comics #809 by Andersen Gabrych and Pete Woods.
It is no wonder that Bruce has done absolutely everything he can to control every situation he is in because he has suffered the loss of family not once, not twice but five times and this doesn't even include other family , like his loss of Alfred to Bane. It's a miracle Batman allows his children to ever leave the mansion, given his very real and very justified fear of anything happening to them.
