inadequate lighting for persons entering or exiting buildings,
or
persons being unable to turn on lights before exiting buildings.
This is to limit the probability that persons
will be unable to see obstructions, which could lead to persons tripping or
falling, which could lead to harm to persons.
To limit the probability that persons will be unable to
see intruders who might be waiting near a building entrance, which could lead
to unwanted entry, which could lead to harm to persons.