Answer:
A retail cashier or simply a cashier is a person who handles the cash register at various locations such as the point of sale in a retail store. Wikipedia
Explanation:
Answer: This is a guess, but possibly to match the scenery/imagery of the scene
Explanation: since the author is pointing out many tropical details, such as coconut white, mango yellow, or children jumping into waves, the author is driving more interest into there piece by saying cactus fence instead of just fence. Again, just a guess.