Why do so many people find it more difficult to back into their own driveway?

Question

than they do to back out of the same driveway?

Answer 1

Because backing in, they're afraid to hit something, like their garage door or wall.  They're backing into a small space.  Also they are backing up a slope, usually.

Backing out into the street is easier since there is a much bigger space and a large margin for error.

Answer 2

For a series of reasons:

- having poor meneuvering notions, especially where to look during the operation;

- lack of physical fitness to turn in their seats and look back (the overweight and/or the elderly);

- having a car with poor rear view and being unable to use external mirrors;

- believing that reversing is harder than driving ahead;

- seeing just the present and refusing to think about the future;

- driving without using their brain.