Dude you are pushing it...ha...ha.. So an elementary school kid raising money for a bicycle for example, by doing paper route, is a professional, per your definition.
Please don't attempt to condition the situation. Whether you like it or not (or whether you can't stand LLL or not), here's the correct definition:
http://www.dictionary.com/browse/professional?s=t
adjective
1.
following an occupation as a means of livelihood or for gain:
a professional builder.
2.
of, relating to, or connected with a profession :
professional studies.
3.
appropriate to a profession :
professional objectivity.
4.
engaged in one of the learned professions :
A lawyer is a professional person.
5.
following as a business an occupation ordinarily engaged in as a pastime:
a professional golfer.
6.
making a business or constant practice of something not properly to be regarded as a business: “A salesman,” he said, “is a professional optimist.”.
7.
undertaken or engaged in as a means of livelihood or for gain:
professional baseball.
