Answer:
Because the clients and the employees are diverse and because there are major groups of hotels chains that dominate the industry.
Step-by-step explanation:
To begin with, the hospitality industry is considered to be so diverse because of the wide range of clients that is it has, representing people from all over the world, the consumers of the hospitality industry tend to have very different cultures, languages, ethics and more and that is becuase the whole world is to be considered a client when it comes to this industry. Moreover, the workers of the industry tend to be from different places as well because that gives a plus to the company who receives people from everywhere.
Secondly, this industry it is considered to be complex due to the fact that most of the hotels chains are the ones that dominate the industry and therefore that one group of hotels is the one that receives the most of the clients and so on.