I don't understand this sentence, please help me with it:

Tourism is a leisure activity which presupposes it's opposite namely regulated or organized work.

Thanks in advance.


Regulated, organized work is required to exist before a tourism industry can exist.

In order for tourism to exist, there must already be a tourist industry, that is, hotels, resorts, restaurants, factories making suitcases and luggage, travel agencies and transportation businesses. These all necessitate an organization with employees doing work.

 AlpheccaStars's reply was promoted to an answer.