Answer:
One size does not fit all. As seen simply through a certain teaching style - not all students in that classroom are going to get that teaching style. When it comes to professional communication, one size does not fit all. An example would be how someone from another country would communicate with lets say someone from the United States. In America, people greet others with a smile, hello and hand shake. People from other countries might not great others that way.
Another example for communication using the example from above, not everyone will view professional communication the same way either whether it might be a cultural or even an age difference. When someone is talking, an American might think the way to show you're a good listener is by responding and throwing in comments with the conversation whereas someone from another country might think by just giving good posture and being quiet is a good listener.
Using the "age" example, two teens might think it's normal to have a conversation while playing around on their phones. However, if a teen is talking with someone older and they're playing on their phone, the older person might consider this to be rude.
In all, one size does not fit especially when it comes to professional communication.