For the purposes of this Article, the following words and phrases are defined as follows:
Guardian appointed by court of competent jurisdiction.
Any person under the age of seventeen (17).
The natural or adoptive father or mother, legal guardian or any other person having the care or custody of a minor child.
Any act or omission by which a parent fails to exercise customary and effective control over a minor so as to contribute to, cause or tend to cause a minor to commit any offense.