We have a deadbolt on the door from the garage into the house. Sames as the front and back doors. I am not really worried about someone sitting on the street and stealing my garage door code. Strangers tend to stand out.I do as well.
Why wouldn't I?
Sure would suck for someone to break in to the furthest part from the bedroom while we're asleep, then just open the door to the house.
We are just fortunate not to have any crime in the neighborhood (none since we lived here).