It would essentially refuse the player to start the engine and shift into Reverse, Drive and Park if the brake isn't held down at that time. The feature would add realism to automatic transmissions. Perhaps, it could be turned on/off in the gameplay settings.
you could do the same with a clutch switch on manual cars. sure, it would be more realistic, but the devs don't want to overcomplicate the gameplay too much either.
This The problem is that many IRL manufacturers often overcomplicate their vehicles, it's the other way round
My summer car has brake to shift, and I don't see how that is complicated gameplay Respectfully, if you don't want overcomplicated stuff, there's always arcade gearbox behavior.
some autos have it where it will only do the brake to shift example any 2000s subaru will start without needing to push the brake