LET'S LEARN ENGLISH

Many students do not understand the use of  a client, a customer and a consumer. I have difficulty to explain to them ( they're primary students) because it means more or less the same. Don't you think so?
After searching for the meanings, I think this is the best answer I can give them.

Well, they are all customers really but a client is more of a business term for a person who returns again to their business and who they have regular dealings with, including lawyers, doctors, beauticians, banks etc. 

A consumer is someone who uses the products, this includes eating, drinking or buying make-up or food and general goods. 

A customer is anyone who is spending the money!